MANUAL E Mount ADAPTER: This is Manual adapters without electronic contacts, which therefore don't support auto-focus or aperture control. You need to manually adjust focus and exposure settings Smooth surface for effortless mount,infinity focus allowed; Made of brass and aluminum (not plastic), anodized aluminum construction.Diaphragm control of the lens is set manually. Compatible Cameras (Including, but not limited to): Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX5T NEX6 NEX7 NEX-F3 a6000 a5000 a3500 a3000 Alpha A7 A7R NEX-VG10 VG20 etc NOTE: This adapter will NOT fit on the Sony a7S, a7 II, a7S II, and a7R II. Please note: Infinity focus position：the position of the infinity mark 【∞】of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity. For Canon EF EF-S Lens: As Canon's EOS lenses are electronically controlled，most Canon EF mount lenses do not feature a manual aperture ring，so when used on our canon to sony adapter, which is a full manual operation adapter ring, the aperture could not be transfered to the camera, it will stop down to its smallest f/stop by default. Features:
Allows focus infinity
Elegant clear appearance
Compact and high quality metal material
High Precise to ensure the perfect fit
Diaphragm control of the lens is set manually

Instructions for use:

Attention:
1.Manual adapter without autofocus or aperture ring.
2.Skillful installation, don't too much force.
3.Adapting an APS-frame lens to a full-frame camera may generate vignetting, some cameras could correct it by adjusting APSC.
4.Adapting a full-frame lens to an APS-frame camera 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
Infinity focus position:
The position of the infinity mark [∞] of the telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes. The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity.

No Lens Attached' - Warning Message Appears:
1.If your camera indicates "lens is not properly installed", please modify the camera settings: 'Menu' -> 'Setup' -> 'Release w/o Lens' -> 'Enable' (Exact naming and location may change depending on camera model). If your lens does not have a manual aperture control ring, it will be maximum aperture by default.If you want to adjust the aperture but without manual control ring, then you need to remove the adapter ring and adjust the aperture on the camera.
2.Set camera "release shutter without lens" to enable when using the adapter for the first time, or the camera will fail to recognize the lens and the shutter may not be released.