- With this adapter, you can use M42 Lens on Canon EOS R camera. - Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. - Inner ring adjustable - Infinity focus is guaranteed. - Material: aluminium. - Please installing / uninstalling the adapter after turning off the camera. - Fine finishing! Install, remove and operate lens smoothly! Suitable for: - Cameras: Canon EOS R RP R5 R6 R7 R8 R10 R50 R100 cameras. (Not suitable for Canon EOS EF mount film / digital SLR cameras and EOS M EF-M mount cameras) Settings: - Put red marks of the adapter and lens collar together. - Use Manual or AV mode. - Open the Menu > Configuring custom functions > Others > Release shutter w/o lens > Enable.
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