Features:

• There are no electrical contacts in the adapter ring. Exposure and focus has to be adjusted manually.
• Auto focus (AF) is not available. Infinity focus allowed. Support AV or M mode.
• Made of brass and aluminium(not plastic).

Compatible:

• Lens: Contax / Yashica (c/y or cy) Lens
• Compatible Cameras (Including, but not limited to): Sony Alpha a7, a7r, A5000, A6000, NEX-3, NEX-5, NEX-C3, NEX-5N, NEX-7, NEX-F3, NEX-5R, NEX-6, NEX-VG10, NEX-VG20, NEX-VG30, NEX-VG900, NEX-FS100, NEX-FS700, NEX-EA50.
• Notice: This adapter will NOT fit on the Sony a7S, a7 II, a7S II, and a7R II.

Package Includes:

• 1 X Contax Yashica CY lens to Sony NEX Adapter
• 1 X Tripod Mount

Please note following common issues:

• Adapting APS-frame lens to full-frame camera, it may generate vignetting, some cameras could correct it by adjust "APSC", please contact us and provide your lens&camera model to check the way to correct it.
• Adapting full-frame lens to APS-frame camera (i.e: large format to medium format, medium format to 35mm, 35mm to micro 4/3) provides excellent edge-to-edge sharpness. The smaller image field helps minimize the effects of lens distortion and aberration by using the 'sweet spot' or center of the larger lens image circle. and it will magnify the focal length by 1.6 on Canon, 1.5 on Nikon and Sony, 2.0 on M4/3 camera.