Meike MK-EFTR-071X Auto Focus 0.71X Speed Booster Lens Mount Adapter for Canon EF Mount Lens to Canon RF Mount Cameras EOS R7 R10 C70 R50

The adapter can combine EF series lens with Canon RF S35 cinema camera or APS-C camera EOS C70 R7 R10; Not compatible with RF full frame cameras. EF-S APS-C lenses couldn't be used with this dapter. 0.71x focal reduction lens mount adapter can reduce the focal length of 0.71 times, improve the luminous flux, and increase the aperture by one gear. Supports automatic focusing, automatic aperture, anti-shake and other lens function. Common functions assigned to the camera, such as shutter speed and aperture settings, can be adjusted through the custom thumbwheel, which is equivalent to Canon RF lens control ring. Built in 4 groups of 5 elements optical glasses. The design of gold plated PIN brings excellent signal transmission.