佳能公布RF 200-800mm F6-8.5 L IS USM鏡頭專利近日,佳能在日本公布RF 200-800mm F6-8.5 L IS USM鏡頭專利,專利編號(hào)為2020-118816。從專利來看,RF 200-800mm F6-8.5 L IS USM鏡頭收納狀態(tài)下的鏡身長(zhǎng)度為285.44mm。作為對(duì)比,佳能RF 100-500mm F4.5-7.1 L IS USM鏡頭的收納狀態(tài)尺寸為φ93.8mm × 207.6mm。 佳能RF 200-800mm F6-8.5 L IS USM鏡頭專利詳情: 焦距:199.97mm 399.99mm 784.76mm 光圈:6.00 6.80 8.50 半畫角:6.17° 3.10° 1.58° 像高:21.64mm 21.64mm 21.64mm 鏡頭全長(zhǎng):285.44mm 355.65mm 385.65mm 后焦距:22.57mm 43.72mm 83.86mm |