The design has a built-in aperture motor and an electronic contact, which can control the aperture of the lens by means of an electronic contact &The aperture control function almost supports all Canon EOS R cameras, and you can adjust the aperture directly from the camera side to control the actual aperture of the lens.

The gold plated PIN has excellent signal transmission performance while EXIF signal transmission.

Built-in IS stability, making your focus more precise and clear, which better help you take pictures. Made of aluminum alloy, with a strong and stable performance. With removable standard 1/4 tripod to the bottom of the camera fixed, super convenient for the connection with a tripod and other supports.

Allows EF/EF-S Lens compatibility with Canon EOS R camera

Drop-in filter Adapter allows the use of circular polarizing Filters

Dust- and water-resistant

Exterior design matched to EF lenses

Metal mount on both Lens and camera sides provides rugged flexibility

Notice 

1.Some functions of EF lenses may not be supported due to camera specifications

2.The closest focus distance, maximum magnification and view angle of the mounted lens will be changed slightly after adapting

3.This product is waterproof. However, It is not recommended for use under rain