1、Exquisite Workmanship: Camera lens mount adapter is made of aluminum alloy, anodized oxidation process, exquisite workmanship, solid wear resistance, long service life. 2、Precise Hole Position: Camera lens adapter ring's hole position is precise, the bayonet perfectly fits the camera and the lens, combining tightly, easy and stable installation and disassembly. 3、Wide Range of Compatibility: Lens converter can make for Contax, for Yashica and other for CY YC lens mount lenses compatible with AI mount camera series cameras, such as for D850 D810 D750 D7500 D6500 and other cameras. 4、Rich Function: Camera lens mount adapter supports full manual control, manual focus, manual exposure, aperture priority, coated with matte paint, capable of focusing at infinity, providing professional photography enthusiasts with professional adapter equipment. 5、Lightweight Deisgn: The weight of the adapter ring is very light, you can hardly feel its weight, and it won't add too much weight when mounted on the camera.