K&F Concept Lens Mount Adapter for M42 Screw Mount SLR Lens to Canon EOS R Camera Body

K&F Concept Lens Mount Adapter Compatible for M42 Screw Mount SLR Lens to Canon EOS R Camera Body

K&F Concept Lens Mount Adapter for M42 Screw Mount SLR Lens to Canon EOS R Camera Body

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 [8] 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.

Key Features

• ✅ ? Material?High-quality copper and aluminum alloy ;High precision and durable.
• ✅ ?Features?Red dot mark, accurate alignment, Install and remove smoothly;
• ✅ ?Manual Focus?Full manual control, Diaphragm control of the lens is set manually. Supports manual control, manual focus, manual exposure and focus to infinity;
• ✅ ?Please note? when using the adapter ring for the first time, please turn on the “release shutter w/o lens”option in the menu, otherwise the adapter lens will not be recognized.
• ✅ ?Pre-purchase Verification? Please ensure your lens mount and camera mount before purchase in case of unnecessary returning. We are here for help if you have any question about adapters.

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