Compatibility: VILTROX EF-R3 Pro Speed Booster is compatible with Canon EF-mount lenses and RF mount camera EOS R R5 R6 RP C70. The newly added mounting plate makes the large lens more stable.

0.71x speed booster: EF-R3 Pro booster can increase a large aperture to blur the background and highlight the theme better. Built-in optical correction group, when using this adapter, the focal length of the lens should be shortened to 0.71 times the original, i.e. the equivalent focal length = focal length x 0.71 times the camera conversion rate.

Auto focus and aperture control: EF-R3 Pro booster with stable, fast and smooth autofocus, so you can easily take photos in the face of fleeting beauty. You can also adjust the aperture of the EF lens via the Canon RF mount camera body.

EXIF signal transmission and IS stabilization: Gold-plated copper contacts with excellent conductivity improve the transmission of EXIF information between lens and camera body. Built-in IS stabilisation that makes your focus much more precise and clearer.

Support firmware update: Through continuous software updates, VILTROX helps users achieve a better shooting experience, fix product errors and constantly adapt to the new EF lens, provide more lens and camera combinations.