佳能公布RF 70-400mm F4.5-5.6 L IS USM鏡頭專(zhuān)利近日,佳能在日本公布編號(hào)2019-158961專(zhuān)利,該專(zhuān)利涉及RF 70-400mm F4.5-5.6、RF 70-300mm F4-5.6兩款鏡頭。其中,RF 70-400mm F4.5-5.6 L IS USM無(wú)反鏡頭定位很有可能等同于EF 100-400mm F4.5-5.6 L IS II USM單反鏡頭。據(jù)此前得到的消息,佳能將于2020年上半年發(fā)布一款焦距約為100-400mm的RF卡口遠(yuǎn)攝變焦鏡頭。 佳能RF 70-400mm F4.5-5.6 L IS USM鏡頭專(zhuān)利詳情: 焦距:72.62mm 168.49mm 389.89mm 光圈:4.07 5.10 5.85 半畫(huà)角:16.59° 7.32° 3.18° 像高:21.64mm 21.64mm 21.64mm 鏡頭全長(zhǎng):187.91mm 236.14mm 268.26mm 后焦距:13.80mm 27.53mm 35.04mm 佳能RF 70-300mm F4-5.6鏡頭專(zhuān)利詳情: 焦距:72.00mm 146.00mm 290.00mm 光圈:4.08 4.88 5.67 半畫(huà)角:16.72° 8.43° 4.27° 像高:21.64mm 21.64mm 21.64mm 鏡頭全長(zhǎng):140.00mm 177.20mm 210.00mm 后焦距:25.13mm 44.86mm 61.65mm |