佳能公布RF 70-400mm F4.5-5.6 L IS USM镜头专利近日,佳能在日本公布编号2019-158961专利,该专利涉及RF 70-400mm F4.5-5.6、RF 70-300mm F4-5.6两款镜头。其中,RF 70-400mm F4.5-5.6 L IS USM无反镜头定位很有可能等同于EF 100-400mm F4.5-5.6 L IS II USM单反镜头。据此前得到的消息,佳能将于2020年上半年发布一款焦距约为100-400mm的RF卡口远摄变焦镜头。 佳能RF 70-400mm F4.5-5.6 L IS USM镜头专利详情: 焦距:72.62mm 168.49mm 389.89mm 光圈:4.07 5.10 5.85 半画角:16.59° 7.32° 3.18° 像高:21.64mm 21.64mm 21.64mm 镜头全长:187.91mm 236.14mm 268.26mm 后焦距:13.80mm 27.53mm 35.04mm 佳能RF 70-300mm F4-5.6镜头专利详情: 焦距:72.00mm 146.00mm 290.00mm 光圈:4.08 4.88 5.67 半画角:16.72° 8.43° 4.27° 像高:21.64mm 21.64mm 21.64mm 镜头全长:140.00mm 177.20mm 210.00mm 后焦距:25.13mm 44.86mm 61.65mm 分享到:
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