Central sharpness is very good at f/1.8 and f/2, excellent from f/2.8 through to f/5.6, very good from f/8 to f/16 and fair at f/22. The edges are good at f/1.8 and f/2, very good from f/2.8 to f ...

佳能RF50mm F1.8 STM是一款EOS全幅微单专用的大光圈定焦镜头。在拥有F1.8大光圈的同时，这枚镜头的体积也非常的小巧，重量仅为160克左右。与同样轻量化的R系列微单相机搭配非常的合适。目前这款镜头在京东商城的售价是1699元。 这枚镜头RF50mm F1.8 STM没有搭载光学 ...

【中关村在线北京行情】佳能RF 50mm f/1.8 STM是一款出色的标准定焦镜头。它为佳能RF卡口，滤镜尺寸43mm。镜头光学结构为5组6片，其中一枚是非球面镜片，7片圆形光圈叶片，这和EF 50MM F/1.8 STM镜头结构相同。其最近对焦距离0.3M，放大倍率0.25倍。配备STM ...

23mm F1.4: Priced at $599, also arriving January 23, 2025. This now brings the total to six APS-C format DC DN lenses for the Canon EOS R range (the 10-18mm 2.8 DC DN | Contemporary and 18-50mm F2.8 ...