Canon has opened the door for third-party lenses to be developed for its RF mount. I take a look at Sigma’s latest RF-S ...

佳能 RF100-500mm F4.5-7.1 L IS USM 镜头兼具高分辨率和美丽的散景效果，让你同时表现出远处景色的壮丽和前景花朵的娇艳，可以说是一个非常可靠的“伙伴”，大大拓展了风景摄影的表现范围。　　　　一、镜头介绍　　它具有 RF ...