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。 &d^=siL
[attachment=95903] \9m*(_Qf 佳能RF 70-400mm F4.5-5.6 L IS USM镜头专利详情: Ie_I7YJ 焦距:72.62mm 168.49mm 389.89mm @)0 Y~A ) 光圈:4.07 5.10 5.85 YMB~[]$V< 半画角:16.59° 7.32° 3.18° BQrL7y 像高:21.64mm 21.64mm 21.64mm h8v>zNf' 镜头全长:187.91mm 236.14mm 268.26mm o0Gx%99' 后焦距:13.80mm 27.53mm 35.04mm S!dHNA:iU 佳能RF 70-300mm F4-5.6镜头专利详情: VWa|Y@Dc] 焦距:72.00mm 146.00mm 290.00mm $G";2(-k 光圈:4.08 4.88 5.67 2i:zz?
'p` 半画角:16.72° 8.43° 4.27° z^`]7i 像高:21.64mm 21.64mm 21.64mm rz 镜头全长:140.00mm 177.20mm 210.00mm sBjXE>_#) 后焦距:25.13mm 44.86mm 61.65mm
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