app\common\model\Article {#218
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"id " => 969
"pid " => 3
"title " => "佳能发布两款L级EF远摄变焦镜头新品EF70-200mm f/2.8L IS III USM及EF70-200mm f/4L IS II USM "
"click " => 8675
"recommend " => null
"defined " => "作者：佳能,时间：6月7日,关于： "
"content " => """
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 2018年6月7日，佳能（中国）有限公司（以下简称“佳能”）宣布推出两款L级EF远摄变焦镜头新品EF70-200mm f/2.8L IS III USM及EF70-200mm f/4L IS II USM。两款新品应用了萤石/UD镜片、IS影像稳定器、环形超声波马达等佳能多项先进技术，EF70-200mm f/2.8L IS III USM还加入了佳能ASC镀膜，使得画质实现再次突破，成为佳能EF L级红圈镜头家族中的新标杆，并将在体育摄影、人像摄影、风光摄影等领域实现广泛应用。同时，两款新品的推出，使备受影像爱好者及专业人士认可与喜爱的、拥有F2.8恒定大光圈的佳能“大三元”系列以及拥有优秀便携性的具备F4恒定光圈的佳能“小三元”系列实现阵容升级，用户可以获得更高的画质表现和专业性能。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<div align="center" style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <table class="ke-zeroborder" style="margin:0px;padding:0px;border-collapse:collapse;background-color:transparent;" border="0">\r\n \t\t <tbody>\r\n \t\t\t <tr>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606073029_23688.jpg" /><br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606073110_87522.jpg" /><br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t </tr>\r\n \t\t\t <tr>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t 佳能EF70-200mm f/2.8L IS III USM<br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t 佳能EF70-200mm f/4L IS II USM<br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t </tr>\r\n \t\t </tbody>\r\n \t </table>\r\n </div>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能“大三元”系列以其能利用F2.8恒定最大光圈，在覆盖从16mm至200mm的焦距范围内拍摄高画质照片，而深受摄影爱好者及专业人士喜爱，多年来凭借高图像解析力、高可靠性、出色背景虚化效果等优势被广泛使用。佳能EF70-200mm f/2.8L IS III USM与EF16-35mm f/2.8L III USM、EF24-70mm f/2.8L II USM以及EF70-200mm f/2.8L USM一起，构成了佳能“大三元”系列的新阵容，不仅提供了更高的光学性能，而且更新了佳能EF L级镜头家族化设计风格。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606075044_64517.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能“大三元”系列镜头 \r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 全系采用F4恒定最大光圈的佳能“小三元”系列新阵容则为用户带来了更多选择，其中广角变焦镜头拥有EF16-35mm f/4L IS USM及EF17-40mm f/4L USM；标准变焦镜头拥有EF24-70mm f/4L IS USM及EF24-105mm f/4L IS II USM；远摄变焦镜头拥有此次新推出的EF70-200mm f/4L IS II USM以及EF70-200mm f/4L USM。佳能“小三元”系列不仅拥有佳能L级的高画质表现，同时在小型轻量化方面更具优势，因此也深受用户广泛欢迎。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606075148_54295.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能“小三元”系列镜头\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n <strong>应用ASC镀膜，佳能EF70-200mm f/2.8L IS III USM 实现画质的再次突破</strong><br />\r\n
作为佳能70-200mm焦段配备F2.8恒定最大光圈镜头的新一代产品，佳能EF70-200mm f/2.8L IS III USM镜头采用出色的光学设计，加入ASC镀膜、萤石镜片、UD镜片等特殊镀膜技术及镜片，实现了画质的再一次突破，达到了佳能EF L级变焦镜头的新高度。\r\n
</p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606075333_10603.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能EF70-200mm f/2.8L IS III USM拍摄样片\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 为了在整个变焦范围内实现更高的解析度和对比度，EF70-200mm f/2.8L IS III USM镜头应用了多项佳能新的光学技术成果。伴随EF100-400mm f/4.5-5.6L IS II USM镜头推出、并深受用户好评的ASC（Air Sphere Coating）镀膜便首次应用在了这款镜头上。这项佳能研发的镀膜技术，可有效抑制因光反射引起的鬼影和眩光。ASC镀膜是在传统的蒸镀多层镀膜之上形成的一层包含二氧化硅与空气的镀膜，利用空气折射率低于光学玻璃的特性，通过在镀膜中包含一定比例的空气，从而实现了低折射率，特别是对近乎垂直入射的光线，可强效发挥防反射作用。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<table class="ke-zeroborder" style="margin:0px auto;padding:0px;text-align:left;color:#000000;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;border-collapse:collapse;background-color:transparent;" border="0">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px 16px 0px 0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082124_30460.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082137_35600.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t ASC镀膜示意图<br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t 防反射效果对比（左：ASC镀膜；右：以往镀膜）\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/2.8L IS III USM镜头采用19组23片镜头结构，其中应用了一枚萤石镜片以及多达5枚UD（超低色散）镜片。深受用户认可的佳能萤石镜片技术，拥有低折射和低色散特性，可补偿一般光学玻璃因折射率产生的色散，使镜头成像基本没有色像差，从而提高镜头的成像品质，实现鲜艳、细腻而锐利的成像表现，同时可实现镜头长度的缩短。5枚UD（超低色散）镜片同样可显著增强该镜头的色像差补偿性能，两片UD镜片可实现与一片萤石镜片媲美的效果，因此可以进一步提升镜头的解像力。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<table class="ke-zeroborder" style="margin:0px auto;padding:0px;text-align:left;color:#000000;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;border-collapse:collapse;background-color:transparent;" border="0">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082403_89008.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180607/20180607022431_75183.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t 拥有低折射率和低色散特性的萤石镜片<br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t UD（超低色散）镜片可显著增强该镜头的色像差补偿性能\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
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\t <br />\r\n </p>\r\n
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\t <img style="border:0px currentColor;width:706.84px;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082659_10406.png" />\r\n </p>\r\n
<div align="center" style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <li>\r\n \t\t 佳能EF70-200mm f/2.8L IS III USM镜头镜片结构图\r\n \t </li>\r\n \t <li>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t （\r\n \t\t </div>\r\n \t\t <div style="background:#9F70D2;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t 萤石镜片\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t \r\n \t\t </div>\r\n \t\t <div style="background:#78CAAF;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t UD镜片）\r\n \t\t </div>\r\n \t </li>\r\n </div>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" /><span class="Apple-converted-space"> </span><img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082929_24656.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能EF70-200mm f/2.8L IS III USM拍摄样片\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/2.8L IS III USM镜头配备的IS影像稳定器，可实现最大相当于约3.5级<sup>1</sup>快门速度的手抖动补偿效果。无论使用适用于普通拍摄的“模式1”，还是可用于追随拍摄的“模式2，在昏暗场景或手持拍摄时，该镜头都能大幅提高低速快门的拍摄成功率，从而帮助用户抓住稍纵即逝的珍贵瞬间。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
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\t EF70-200mm f/2.8L IS III USM镜头与大多数L级镜头一样，采用了防水滴防尘结构<sup>2</sup>，可更好地适应在不良气候环境下的拍摄，实现日常使用的高可靠性。同时，该镜头也加入了具有更好憎油憎水性的防污氟镀膜，在保证良好透光率的同时，可更加轻松地擦除附着于镜片上的水滴或油渍<sup>3</sup>。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 该镜头在全焦段都能实现约1.2米的最近对焦距离，最大放大倍率约0.21倍，能够获得主体更加突出的特写效果。在拍摄场地移动空间受限的情况下，同样具备较高的拍摄灵活性。外观方面，EF70-200mm f/2.8L IS III USM镜头采用佳能EF L镜头新的家族化设计风格，更加简约、大气。该镜头滤镜规格为77mm，长度约199毫米，重量约1480克。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n <strong>5级防抖性能提升，佳能EF70-200mm f/4L IS II USM实现更多创作可能</strong><br />\r\n
此次，深受用户欢迎的EF70-200mm f/4L IS USM镜头也迎来更新。继任型号EF70-200mm f/4L IS II USM镜头在IS影像稳定器、抑制鬼影和眩光、最近对焦距离、可靠性以及外观等方面，进行了多方位提升，同时延续了佳能L级镜头高画质特点，并保持紧凑、轻量化的优势。\r\n
</p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606083459_97221.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能EF70-200mm f/4L IS II USM镜头拍摄样片\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 为进一步提升用户在低速快门下手持拍摄的成功率，佳能对EF70-200mm f/4L IS II USM镜头的IS影像稳定器功能进行了强化，从而可适应更广泛的手持拍摄场景。该镜头可实现的手抖动补偿效果从前代产品最大相当于约3.5级<sup>1</sup>快门速度，提升至约5级<sup>1</sup>快门速度，因此当用户在暗光线环境下进行手持拍摄时，可以使用更慢的快门速度获得清晰、稳定的拍摄效果。同时相机的ISO感光度数值可进一步降低，从而获得更加纯净的低噪点图像。此外，新型号还在常规的“模式1”以及适合追随拍摄的“模式2”等两种补偿模式外，增加了适合拍摄不规则运动被摄体的“模式3”，该模式仅在曝光期间进行手抖动补偿，适合拍摄奔跑中的孩子等生活场景，以及足球、跳高等运动场景。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180607/20180607053400_51358.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 采用IS影像稳定器拍摄样张对比\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/4L IS II USM镜头采用15组、20片镜片结构，镜头口径扩大至72mm。画质方面，新的镜头通过优化镀膜的方式，进一步减轻了眩光、鬼影对拍摄画面的影响，使图像更加纯净。一枚萤石镜片以及两枚UD（超低色散）镜片的加入，也保证了该镜头高解像力、高对比度图像的实现，延续了该系列一如既往的高画质水准。此外，该镜头采用了9叶片EMD光圈结构，拍摄画面背景中的光点可实现更接近圆形的虚化效果。在提升画质的同时，EF70-200mm f/4L IS II USM镜头在全焦段的最近对焦距离也从前代产品的约1.2m缩短至约1m，200mm焦距端的最大放大倍率由约0.21x提升至约0.27x。更近的最近对焦距离可以帮助拍摄者进行主体更加突出的特写拍摄，实现更强力的视觉效果。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606084345_81945.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/4L IS II USM镜头拍摄样片\r\n </p>\r\n
<p align="left" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;width:706.84px;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606084516_75214.png" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<div align="center" style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <li>\r\n \t\t 佳能EF70-200mm f/4L IS II USM镜头镜片结构图\r\n \t </li>\r\n \t <li>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t （\r\n \t\t </div>\r\n \t\t <div style="background:#9F70D2;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t 萤石镜片\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t \r\n \t\t </div>\r\n \t\t <div style="background:#78CAAF;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t UD镜片）\r\n \t\t </div>\r\n \t </li>\r\n </div>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<br />\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 作为佳能L级镜头家族的一员，EF70-200mm f/4L IS II USM镜头也具备高使用可靠性。最前端与最后端的镜片覆盖有防污氟镀膜<sup>3</sup>，不易附着灰尘与污渍且易于擦拭，同时还采用了防水滴防尘<sup>2</sup>设计，可有效应对严酷的拍摄环境。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 外观方面，EF70-200mm f/4L IS II USM镜头采用了佳能新的L级镜头设计风格，拥有更符合当前审美的视觉效果。该镜头长度和最大直径约为176mm以及80mm，重量约为780g。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 1. 基于CIPA测试标准<br />\r\n 2. 本机构虽然具有一定的防水滴性能，但是如果在雨天拍摄时，请尽量不要淋湿。<br />\r\n
3. 清洁污迹前，请先用气吹将镜片表面灰尘吹去，之后用镜头布进行清洁。\r\n
</p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 【产品官网链接】\r\n </p>\r\n
<table style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;border-collapse:collapse;background-color:#FFFFFF;" border="1">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t 商品名<br />\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"="">产品官网链接<br />\r\n </span>\r\n
\t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:center;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"=""><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;"="">EF70-200mm f/2.8L IS III USM</span></span>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <a href="http://www.canon.com.cn/product/ef70200f28lisiii/">http://www.canon.com.cn/product/ef70200f28lisiii/</a>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"="">EF70-200mm f/4L IS II USM</span>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <u><span style="color:#000120;"></span></u><a href="http://www.canon.com.cn/product/ef70200f4lisii/">http://www.canon.com.cn/product/ef70200f4lisii/</a><br />\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <a href="http://www.canon.com.cn/product/ef70200f4lisii/"></a>\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="text-align:left;color:#000000;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;background-color:transparent;">\r\n
\t <br />\r\n </p>\r\n
<p style="text-align:left;color:#000000;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;background-color:transparent;">\r\n
\t 【产品上市信息参考】\r\n </p>\r\n
<table style="margin:0px;padding:0px;width:541px;text-align:left;color:#000000;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;border-collapse:collapse;background-color:transparent;" border="1" cellspacing="0" cellpadding="2">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 商品名<br />\r\n \t\t\t </td>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 预计销售时间<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"=""><br />\r\n </span>\r\n
\t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:center;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"=""><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;"="">EF70-200mm f/2.8L IS III USM</span></span>\r\n \t\t\t </td>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 2018年8月<br />\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"="">EF70-200mm f/4L IS II USM</span>\r\n \t\t\t </td>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 2018年6月下旬<br />\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
<br class="Apple-interchange-newline" />
"""
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"keywords " => "佳能小白伞 小小白兔 新品发布 6月20日我们不见不散 "
"description " => ""
"sort " => 0
"status " => 1
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#data : DateTime @1529232875 {#225
date : 2018-06-17 18:54:35.0 Asia/Shanghai (+08:00)
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#format : "Y-m-d H:i:s "
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origin : array:14 [
"id " => 969
"pid " => 3
"title " => "佳能发布两款L级EF远摄变焦镜头新品EF70-200mm f/2.8L IS III USM及EF70-200mm f/4L IS II USM "
"click " => 8675
"recommend " => null
"defined " => "作者：佳能,时间：6月7日,关于： "
"content " => """
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 2018年6月7日，佳能（中国）有限公司（以下简称“佳能”）宣布推出两款L级EF远摄变焦镜头新品EF70-200mm f/2.8L IS III USM及EF70-200mm f/4L IS II USM。两款新品应用了萤石/UD镜片、IS影像稳定器、环形超声波马达等佳能多项先进技术，EF70-200mm f/2.8L IS III USM还加入了佳能ASC镀膜，使得画质实现再次突破，成为佳能EF L级红圈镜头家族中的新标杆，并将在体育摄影、人像摄影、风光摄影等领域实现广泛应用。同时，两款新品的推出，使备受影像爱好者及专业人士认可与喜爱的、拥有F2.8恒定大光圈的佳能“大三元”系列以及拥有优秀便携性的具备F4恒定光圈的佳能“小三元”系列实现阵容升级，用户可以获得更高的画质表现和专业性能。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<div align="center" style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <table class="ke-zeroborder" style="margin:0px;padding:0px;border-collapse:collapse;background-color:transparent;" border="0">\r\n \t\t <tbody>\r\n \t\t\t <tr>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606073029_23688.jpg" /><br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606073110_87522.jpg" /><br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t </tr>\r\n \t\t\t <tr>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t 佳能EF70-200mm f/2.8L IS III USM<br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t\t <td>\r\n \t\t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t\t 佳能EF70-200mm f/4L IS II USM<br />\r\n \t\t\t\t\t </div>\r\n \t\t\t\t </td>\r\n \t\t\t </tr>\r\n \t\t </tbody>\r\n \t </table>\r\n </div>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能“大三元”系列以其能利用F2.8恒定最大光圈，在覆盖从16mm至200mm的焦距范围内拍摄高画质照片，而深受摄影爱好者及专业人士喜爱，多年来凭借高图像解析力、高可靠性、出色背景虚化效果等优势被广泛使用。佳能EF70-200mm f/2.8L IS III USM与EF16-35mm f/2.8L III USM、EF24-70mm f/2.8L II USM以及EF70-200mm f/2.8L USM一起，构成了佳能“大三元”系列的新阵容，不仅提供了更高的光学性能，而且更新了佳能EF L级镜头家族化设计风格。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606075044_64517.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能“大三元”系列镜头 \r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 全系采用F4恒定最大光圈的佳能“小三元”系列新阵容则为用户带来了更多选择，其中广角变焦镜头拥有EF16-35mm f/4L IS USM及EF17-40mm f/4L USM；标准变焦镜头拥有EF24-70mm f/4L IS USM及EF24-105mm f/4L IS II USM；远摄变焦镜头拥有此次新推出的EF70-200mm f/4L IS II USM以及EF70-200mm f/4L USM。佳能“小三元”系列不仅拥有佳能L级的高画质表现，同时在小型轻量化方面更具优势，因此也深受用户广泛欢迎。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606075148_54295.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能“小三元”系列镜头\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n <strong>应用ASC镀膜，佳能EF70-200mm f/2.8L IS III USM 实现画质的再次突破</strong><br />\r\n
作为佳能70-200mm焦段配备F2.8恒定最大光圈镜头的新一代产品，佳能EF70-200mm f/2.8L IS III USM镜头采用出色的光学设计，加入ASC镀膜、萤石镜片、UD镜片等特殊镀膜技术及镜片，实现了画质的再一次突破，达到了佳能EF L级变焦镜头的新高度。\r\n
</p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606075333_10603.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能EF70-200mm f/2.8L IS III USM拍摄样片\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 为了在整个变焦范围内实现更高的解析度和对比度，EF70-200mm f/2.8L IS III USM镜头应用了多项佳能新的光学技术成果。伴随EF100-400mm f/4.5-5.6L IS II USM镜头推出、并深受用户好评的ASC（Air Sphere Coating）镀膜便首次应用在了这款镜头上。这项佳能研发的镀膜技术，可有效抑制因光反射引起的鬼影和眩光。ASC镀膜是在传统的蒸镀多层镀膜之上形成的一层包含二氧化硅与空气的镀膜，利用空气折射率低于光学玻璃的特性，通过在镀膜中包含一定比例的空气，从而实现了低折射率，特别是对近乎垂直入射的光线，可强效发挥防反射作用。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<table class="ke-zeroborder" style="margin:0px auto;padding:0px;text-align:left;color:#000000;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;border-collapse:collapse;background-color:transparent;" border="0">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px 16px 0px 0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082124_30460.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082137_35600.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t ASC镀膜示意图<br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t 防反射效果对比（左：ASC镀膜；右：以往镀膜）\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/2.8L IS III USM镜头采用19组23片镜头结构，其中应用了一枚萤石镜片以及多达5枚UD（超低色散）镜片。深受用户认可的佳能萤石镜片技术，拥有低折射和低色散特性，可补偿一般光学玻璃因折射率产生的色散，使镜头成像基本没有色像差，从而提高镜头的成像品质，实现鲜艳、细腻而锐利的成像表现，同时可实现镜头长度的缩短。5枚UD（超低色散）镜片同样可显著增强该镜头的色像差补偿性能，两片UD镜片可实现与一片萤石镜片媲美的效果，因此可以进一步提升镜头的解像力。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<table class="ke-zeroborder" style="margin:0px auto;padding:0px;text-align:left;color:#000000;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;border-collapse:collapse;background-color:transparent;" border="0">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082403_89008.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t <img style="border:0px #000000;" alt="" src="http://www.canon.com.cn/Upload/image/20180607/20180607022431_75183.jpg" /><br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <div align="center" style="margin:0px;padding:0px;">\r\n \t\t\t\t\t 拥有低折射率和低色散特性的萤石镜片<br />\r\n \t\t\t\t </div>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t UD（超低色散）镜片可显著增强该镜头的色像差补偿性能\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;width:706.84px;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082659_10406.png" />\r\n </p>\r\n
<div align="center" style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <li>\r\n \t\t 佳能EF70-200mm f/2.8L IS III USM镜头镜片结构图\r\n \t </li>\r\n \t <li>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t （\r\n \t\t </div>\r\n \t\t <div style="background:#9F70D2;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t 萤石镜片\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t \r\n \t\t </div>\r\n \t\t <div style="background:#78CAAF;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t UD镜片）\r\n \t\t </div>\r\n \t </li>\r\n </div>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" /><span class="Apple-converted-space"> </span><img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606082929_24656.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能EF70-200mm f/2.8L IS III USM拍摄样片\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/2.8L IS III USM镜头配备的IS影像稳定器，可实现最大相当于约3.5级<sup>1</sup>快门速度的手抖动补偿效果。无论使用适用于普通拍摄的“模式1”，还是可用于追随拍摄的“模式2，在昏暗场景或手持拍摄时，该镜头都能大幅提高低速快门的拍摄成功率，从而帮助用户抓住稍纵即逝的珍贵瞬间。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/2.8L IS III USM镜头与大多数L级镜头一样，采用了防水滴防尘结构<sup>2</sup>，可更好地适应在不良气候环境下的拍摄，实现日常使用的高可靠性。同时，该镜头也加入了具有更好憎油憎水性的防污氟镀膜，在保证良好透光率的同时，可更加轻松地擦除附着于镜片上的水滴或油渍<sup>3</sup>。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 该镜头在全焦段都能实现约1.2米的最近对焦距离，最大放大倍率约0.21倍，能够获得主体更加突出的特写效果。在拍摄场地移动空间受限的情况下，同样具备较高的拍摄灵活性。外观方面，EF70-200mm f/2.8L IS III USM镜头采用佳能EF L镜头新的家族化设计风格，更加简约、大气。该镜头滤镜规格为77mm，长度约199毫米，重量约1480克。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n <strong>5级防抖性能提升，佳能EF70-200mm f/4L IS II USM实现更多创作可能</strong><br />\r\n
此次，深受用户欢迎的EF70-200mm f/4L IS USM镜头也迎来更新。继任型号EF70-200mm f/4L IS II USM镜头在IS影像稳定器、抑制鬼影和眩光、最近对焦距离、可靠性以及外观等方面，进行了多方位提升，同时延续了佳能L级镜头高画质特点，并保持紧凑、轻量化的优势。\r\n
</p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606083459_97221.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 佳能EF70-200mm f/4L IS II USM镜头拍摄样片\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 为进一步提升用户在低速快门下手持拍摄的成功率，佳能对EF70-200mm f/4L IS II USM镜头的IS影像稳定器功能进行了强化，从而可适应更广泛的手持拍摄场景。该镜头可实现的手抖动补偿效果从前代产品最大相当于约3.5级<sup>1</sup>快门速度，提升至约5级<sup>1</sup>快门速度，因此当用户在暗光线环境下进行手持拍摄时，可以使用更慢的快门速度获得清晰、稳定的拍摄效果。同时相机的ISO感光度数值可进一步降低，从而获得更加纯净的低噪点图像。此外，新型号还在常规的“模式1”以及适合追随拍摄的“模式2”等两种补偿模式外，增加了适合拍摄不规则运动被摄体的“模式3”，该模式仅在曝光期间进行手抖动补偿，适合拍摄奔跑中的孩子等生活场景，以及足球、跳高等运动场景。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180607/20180607053400_51358.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 采用IS影像稳定器拍摄样张对比\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/4L IS II USM镜头采用15组、20片镜片结构，镜头口径扩大至72mm。画质方面，新的镜头通过优化镀膜的方式，进一步减轻了眩光、鬼影对拍摄画面的影响，使图像更加纯净。一枚萤石镜片以及两枚UD（超低色散）镜片的加入，也保证了该镜头高解像力、高对比度图像的实现，延续了该系列一如既往的高画质水准。此外，该镜头采用了9叶片EMD光圈结构，拍摄画面背景中的光点可实现更接近圆形的虚化效果。在提升画质的同时，EF70-200mm f/4L IS II USM镜头在全焦段的最近对焦距离也从前代产品的约1.2m缩短至约1m，200mm焦距端的最大放大倍率由约0.21x提升至约0.27x。更近的最近对焦距离可以帮助拍摄者进行主体更加突出的特写拍摄，实现更强力的视觉效果。\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606084345_81945.jpg" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t EF70-200mm f/4L IS II USM镜头拍摄样片\r\n </p>\r\n
<p align="left" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <img style="border:0px currentColor;width:706.84px;" alt="" src="http://www.canon.com.cn/Upload/image/20180606/20180606084516_75214.png" />\r\n </p>\r\n
<p align="center" style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<div align="center" style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <li>\r\n \t\t 佳能EF70-200mm f/4L IS II USM镜头镜片结构图\r\n \t </li>\r\n \t <li>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t （\r\n \t\t </div>\r\n \t\t <div style="background:#9F70D2;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t 萤石镜片\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t \r\n \t\t </div>\r\n \t\t <div style="background:#78CAAF;margin:0px;padding:0px;">\r\n \t\t </div>\r\n \t\t <div style="margin:0px;padding:0px;">\r\n \t\t\t UD镜片）\r\n \t\t </div>\r\n \t </li>\r\n </div>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<br />\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 作为佳能L级镜头家族的一员，EF70-200mm f/4L IS II USM镜头也具备高使用可靠性。最前端与最后端的镜片覆盖有防污氟镀膜<sup>3</sup>，不易附着灰尘与污渍且易于擦拭，同时还采用了防水滴防尘<sup>2</sup>设计，可有效应对严酷的拍摄环境。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 外观方面，EF70-200mm f/4L IS II USM镜头采用了佳能新的L级镜头设计风格，拥有更符合当前审美的视觉效果。该镜头长度和最大直径约为176mm以及80mm，重量约为780g。\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 1. 基于CIPA测试标准<br />\r\n 2. 本机构虽然具有一定的防水滴性能，但是如果在雨天拍摄时，请尽量不要淋湿。<br />\r\n
3. 清洁污迹前，请先用气吹将镜片表面灰尘吹去，之后用镜头布进行清洁。\r\n
</p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t 【产品官网链接】\r\n </p>\r\n
<table style="margin:0px;padding:0px;color:#333333;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;border-collapse:collapse;background-color:#FFFFFF;" border="1">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t 商品名<br />\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"="">产品官网链接<br />\r\n </span>\r\n
\t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:center;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"=""><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;"="">EF70-200mm f/2.8L IS III USM</span></span>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <a href="http://www.canon.com.cn/product/ef70200f28lisiii/">http://www.canon.com.cn/product/ef70200f28lisiii/</a>\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td>\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"="">EF70-200mm f/4L IS II USM</span>\r\n \t\t\t </td>\r\n \t\t\t <td>\r\n \t\t\t\t <u><span style="color:#000120;"></span></u><a href="http://www.canon.com.cn/product/ef70200f4lisii/">http://www.canon.com.cn/product/ef70200f4lisii/</a><br />\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <a href="http://www.canon.com.cn/product/ef70200f4lisii/"></a>\r\n </p>\r\n
<p style="color:#333333;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:normal;background-color:#FFFFFF;">\r\n
\t <br />\r\n </p>\r\n
<p style="text-align:left;color:#000000;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;background-color:transparent;">\r\n
\t <br />\r\n </p>\r\n
<p style="text-align:left;color:#000000;text-indent:0px;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;background-color:transparent;">\r\n
\t 【产品上市信息参考】\r\n </p>\r\n
<table style="margin:0px;padding:0px;width:541px;text-align:left;color:#000000;font-family:"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;font-size:14px;font-style:normal;font-weight:400;text-decoration:none;border-collapse:collapse;background-color:transparent;" border="1" cellspacing="0" cellpadding="2">\r\n
\t <tbody>\r\n \t\t <tr>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 商品名<br />\r\n \t\t\t </td>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 预计销售时间<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"=""><br />\r\n </span>\r\n
\t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:center;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"=""><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;"="">EF70-200mm f/2.8L IS III USM</span></span>\r\n \t\t\t </td>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 2018年8月<br />\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t\t <tr>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 0); float: none; display: inline; box-sizing: border-box; background-color: transparent;" sans="" serif",tahoma,verdana,helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration:none;text-indent:0px;text-transform:none;-webkit-text-stroke-width:0px;white-space:normal;word-spacing:0px;word-wrap:break-word;"="">EF70-200mm f/4L IS II USM</span>\r\n \t\t\t </td>\r\n \t\t\t <td style="font-style:normal;font-weight:400;">\r\n \t\t\t\t 2018年6月下旬<br />\r\n \t\t\t </td>\r\n \t\t </tr>\r\n \t </tbody>\r\n </table>\r\n
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佳能发布两款L级EF远摄变焦镜头新品EF70-200mm f/2.8L IS III USM及EF70-200mm f/4L IS II USM
佳能发布两款L级EF远摄变焦镜头新品EF70-200mm f/2.8L IS III USM及EF70-200mm f/4L IS II USM
更新时间 2018/06/17 18:54:35点击数 8675
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作者：佳能,时间：6月7日,关于：
2018年6月7日，佳能（中国）有限公司（以下简称“佳能”）宣布推出两款L级EF远摄变焦镜头新品EF70-200mm f/2.8L IS III USM及EF70-200mm f/4L IS II USM。两款新品应用了萤石/UD镜片、IS影像稳定器、环形超声波马达等佳能多项先进技术，EF70-200mm f/2.8L IS III USM还加入了佳能ASC镀膜，使得画质实现再次突破，成为佳能EF L级红圈镜头家族中的新标杆，并将在体育摄影、人像摄影、风光摄影等领域实现广泛应用。同时，两款新品的推出，使备受影像爱好者及专业人士认可与喜爱的、拥有F2.8恒定大光圈的佳能“大三元”系列以及拥有优秀便携性的具备F4恒定光圈的佳能“小三元”系列实现阵容升级，用户可以获得更高的画质表现和专业性能。
佳能EF70-200mm f/2.8L IS III USM
佳能EF70-200mm f/4L IS II USM
佳能“大三元”系列以其能利用F2.8恒定最大光圈，在覆盖从16mm至200mm的焦距范围内拍摄高画质照片，而深受摄影爱好者及专业人士喜爱，多年来凭借高图像解析力、高可靠性、出色背景虚化效果等优势被广泛使用。佳能EF70-200mm f/2.8L IS III USM与EF16-35mm f/2.8L III USM、EF24-70mm f/2.8L II USM以及EF70-200mm f/2.8L USM一起，构成了佳能“大三元”系列的新阵容，不仅提供了更高的光学性能，而且更新了佳能EF L级镜头家族化设计风格。
佳能“大三元”系列镜头
全系采用F4恒定最大光圈的佳能“小三元”系列新阵容则为用户带来了更多选择，其中广角变焦镜头拥有EF16-35mm f/4L IS USM及EF17-40mm f/4L USM；标准变焦镜头拥有EF24-70mm f/4L IS USM及EF24-105mm f/4L IS II USM；远摄变焦镜头拥有此次新推出的EF70-200mm f/4L IS II USM以及EF70-200mm f/4L USM。佳能“小三元”系列不仅拥有佳能L级的高画质表现，同时在小型轻量化方面更具优势，因此也深受用户广泛欢迎。
佳能“小三元”系列镜头
应用ASC镀膜，佳能EF70-200mm f/2.8L IS III USM 实现画质的再次突破
佳能EF70-200mm f/2.8L IS III USM拍摄样片
为了在整个变焦范围内实现更高的解析度和对比度，EF70-200mm f/2.8L IS III USM镜头应用了多项佳能新的光学技术成果。伴随EF100-400mm f/4.5-5.6L IS II USM镜头推出、并深受用户好评的ASC（Air Sphere Coating）镀膜便首次应用在了这款镜头上。这项佳能研发的镀膜技术，可有效抑制因光反射引起的鬼影和眩光。ASC镀膜是在传统的蒸镀多层镀膜之上形成的一层包含二氧化硅与空气的镀膜，利用空气折射率低于光学玻璃的特性，通过在镀膜中包含一定比例的空气，从而实现了低折射率，特别是对近乎垂直入射的光线，可强效发挥防反射作用。
ASC镀膜示意图
防反射效果对比（左：ASC镀膜；右：以往镀膜）
EF70-200mm f/2.8L IS III USM镜头采用19组23片镜头结构，其中应用了一枚萤石镜片以及多达5枚UD（超低色散）镜片。深受用户认可的佳能萤石镜片技术，拥有低折射和低色散特性，可补偿一般光学玻璃因折射率产生的色散，使镜头成像基本没有色像差，从而提高镜头的成像品质，实现鲜艳、细腻而锐利的成像表现，同时可实现镜头长度的缩短。5枚UD（超低色散）镜片同样可显著增强该镜头的色像差补偿性能，两片UD镜片可实现与一片萤石镜片媲美的效果，因此可以进一步提升镜头的解像力。
拥有低折射率和低色散特性的萤石镜片
UD（超低色散）镜片可显著增强该镜头的色像差补偿性能
佳能EF70-200mm f/2.8L IS III USM镜头镜片结构图
（
萤石镜片
UD镜片）
佳能EF70-200mm f/2.8L IS III USM拍摄样片
EF70-200mm f/2.8L IS III USM镜头配备的IS影像稳定器，可实现最大相当于约3.5级1 快门速度的手抖动补偿效果。无论使用适用于普通拍摄的“模式1”，还是可用于追随拍摄的“模式2，在昏暗场景或手持拍摄时，该镜头都能大幅提高低速快门的拍摄成功率，从而帮助用户抓住稍纵即逝的珍贵瞬间。
EF70-200mm f/2.8L IS III USM镜头与大多数L级镜头一样，采用了防水滴防尘结构2 ，可更好地适应在不良气候环境下的拍摄，实现日常使用的高可靠性。同时，该镜头也加入了具有更好憎油憎水性的防污氟镀膜，在保证良好透光率的同时，可更加轻松地擦除附着于镜片上的水滴或油渍3 。
该镜头在全焦段都能实现约1.2米的最近对焦距离，最大放大倍率约0.21倍，能够获得主体更加突出的特写效果。在拍摄场地移动空间受限的情况下，同样具备较高的拍摄灵活性。外观方面，EF70-200mm f/2.8L IS III USM镜头采用佳能EF L镜头新的家族化设计风格，更加简约、大气。该镜头滤镜规格为77mm，长度约199毫米，重量约1480克。
5级防抖性能提升，佳能EF70-200mm f/4L IS II USM实现更多创作可能
佳能EF70-200mm f/4L IS II USM镜头拍摄样片
为进一步提升用户在低速快门下手持拍摄的成功率，佳能对EF70-200mm f/4L IS II USM镜头的IS影像稳定器功能进行了强化，从而可适应更广泛的手持拍摄场景。该镜头可实现的手抖动补偿效果从前代产品最大相当于约3.5级1 快门速度，提升至约5级1 快门速度，因此当用户在暗光线环境下进行手持拍摄时，可以使用更慢的快门速度获得清晰、稳定的拍摄效果。同时相机的ISO感光度数值可进一步降低，从而获得更加纯净的低噪点图像。此外，新型号还在常规的“模式1”以及适合追随拍摄的“模式2”等两种补偿模式外，增加了适合拍摄不规则运动被摄体的“模式3”，该模式仅在曝光期间进行手抖动补偿，适合拍摄奔跑中的孩子等生活场景，以及足球、跳高等运动场景。
采用IS影像稳定器拍摄样张对比
EF70-200mm f/4L IS II USM镜头采用15组、20片镜片结构，镜头口径扩大至72mm。画质方面，新的镜头通过优化镀膜的方式，进一步减轻了眩光、鬼影对拍摄画面的影响，使图像更加纯净。一枚萤石镜片以及两枚UD（超低色散）镜片的加入，也保证了该镜头高解像力、高对比度图像的实现，延续了该系列一如既往的高画质水准。此外，该镜头采用了9叶片EMD光圈结构，拍摄画面背景中的光点可实现更接近圆形的虚化效果。在提升画质的同时，EF70-200mm f/4L IS II USM镜头在全焦段的最近对焦距离也从前代产品的约1.2m缩短至约1m，200mm焦距端的最大放大倍率由约0.21x提升至约0.27x。更近的最近对焦距离可以帮助拍摄者进行主体更加突出的特写拍摄，实现更强力的视觉效果。
EF70-200mm f/4L IS II USM镜头拍摄样片
佳能EF70-200mm f/4L IS II USM镜头镜片结构图
（
萤石镜片
UD镜片）
作为佳能L级镜头家族的一员，EF70-200mm f/4L IS II USM镜头也具备高使用可靠性。最前端与最后端的镜片覆盖有防污氟镀膜3 ，不易附着灰尘与污渍且易于擦拭，同时还采用了防水滴防尘2 设计，可有效应对严酷的拍摄环境。
外观方面，EF70-200mm f/4L IS II USM镜头采用了佳能新的L级镜头设计风格，拥有更符合当前审美的视觉效果。该镜头长度和最大直径约为176mm以及80mm，重量约为780g。
1. 基于CIPA测试标准
【产品官网链接】
【产品上市信息参考】
商品名
预计销售时间
EF70-200mm f/2.8L IS III USM
2018年8月
EF70-200mm f/4L IS II USM
2018年6月下旬
基本
文件
流程
错误
SQL
调试
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