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About the item:

Manual adapter, auto diaphragm/auto-focus is not allowed.
This adapter allows user to connect Leica M LM L/M / M42 / EOS EF EF-S / FD FL / Alpha A-Mount (and Minolta AF)/ Nik F/AI/AIS/D/AF-S/ Olympus OM/ Pentax K PK Mount Lenses to EOS R mount cameras.
Anodized Aluminum and Heavy Grade Brass Construction, matting varnish inside to avoid light reflection.
Infinity focus function is allowed.
There are two types of FD mounts, the installation way and aperture control way are different, please contact our professional after sales team for help if you encounter this kind of issue.

Product Description

Canon STM series lenses don't work with our adapters. STM lens (such as EF 50mm f/1.8 STM, EF 18-135 IS STM) requires to be powered to drive the motor to focus, so cannot achieve focus with manual adapters.
K&F Concept lens mount adapters are all manual adapters without electronic contacts, doesn't support auto-focus / aperture control, but supports focus to infinity. The lens with a manual adapter will be the maximum aperture by default (EXCEPT your lens has a manual aperture control ring).
If “No Lens Attached” - warning appears, the camera needs to be set to function. You can do this by changing the following camera setting: 'Menu' -> 'Setup' -> 'Release w/o Lens' -> 'Enable' (Exact naming and location of this option depend on camera model).
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.
Please figure out the mount of your camera and lens in case of buying the wrong adapter.


Suitable for: Lens: Leica M LM L/M / M42 / EOS EF EF-S / FD FL / Alpha A-Mount (and Minolta AF)/ Nik F/AI/AIS/D/AF-S/ Olympus OM/ Pentax K PK(Please choose the correct size) Properly installed when you rotate about 90 degrees and hear a light "click". Please screw the lens adapter lightly and skillfully, needn't too much force.	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.	Note: Adapting APS-frame lens to full-frame camera, it may generate vignetting, some cameras could correct it by adjust APSC. Adapting full-frame lens to 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.