Urth Mount Adapter Canon (EF / EF-S) Lens to Micro Four Thirds Camera

No, this is a manual adapter. Autofocus functions will not work. You will need to manually focus the lens.

No, automatic aperture control is not supported. If your Canon lens has an aperture ring, you will use that. Otherwise, the lens will likely remain at its widest aperture.

No, this adapter is specifically designed for Canon EF and EF-S mount lenses. Canon EF-M lenses have a different mount system.

It means that electronic communication between the lens and camera is disabled. All camera functions that rely on this communication, such as autofocus, auto-aperture, and EXIF data transfer, will not function. You must manually adjust focus and exposure.

The adapter itself is designed with an anti-reflection coating to minimize internal reflections. However, the image quality ultimately depends on the lens used and the manual focusing accuracy. Extended infinity focus might be an issue with some lens and camera combinations.

Mount the adapter to the camera body by aligning the red dots and rotating until it clicks. Mount the lens to the adapter by aligning the white dots and rotating until it clicks. To dismount, press the release buttons (on the camera and/or adapter) and rotate in the opposite direction.

This Urth adapter is backed by a lifetime warranty.

Ensure no debris is present on the mounting surfaces of the lens, adapter, and camera. Realign the mounting indices and try again.

This is expected for manual focus. Practice focusing carefully using the camera's live view and focus aids. Some lens/adapter combinations may require slight focus adjustments beyond infinity mark.

Check that the adapter and lens are fully seated and clicked into place. Ensure no damage to the mounting rings on the lens or adapter.

This is normal behavior as the adapter does not transmit electronic signals. Ensure the camera is set to allow shooting without a lens (often found in camera settings).