Canon Lens Mount Adapter - EF-EOS R

Yes, the Canon Mount Adapter EF-EOS R supports all Canon EF and EF-S lenses.

No, the adapter is designed to maintain the original image quality of your lenses.

Yes, EF-S lenses are designed for APS-C sensors and will automatically crop the image on a full-frame EOS R camera.

Yes, the adapter is weather-sealed to protect against dust and moisture.

Autofocus performance is generally maintained, but may vary slightly depending on the lens and camera model.

Yes, you can use filters designed for your EF or EF-S lenses.

Warranty information can be found on Canon's official website or in the product documentation.

Ensure both the lens and adapter are securely attached. Clean the lens contacts on both the lens and adapter. Check the camera settings to ensure lens communication is enabled.

Check the lens's autofocus settings and ensure they are enabled. Ensure there is sufficient light for the camera to autofocus. Try manually focusing the lens.

Make sure the lens is properly mounted and locked onto the adapter. Check for any obstructions on the lens or adapter. Verify the lens and adapter are clean.