Fotodiox offers a strong support for the c-mount platform with multiple options for mounting modern and vintage lenses. We offer a complete adapting solution at an affordable price without compromising on quality. Our c-mount adapters are made to last and are precision made making them perfect for video to machine vision. lens compatibility note: normal Canon lenses have many electronic features that are disabled when using a mechanical adapter such as this one. This adapter is best used with manual focus lenses designed for the Canon EF mount or lenses that have been converted with a Canon EF bayonet that offer aperture control from the lens. compatible cameras: The adapter features a 1.0000-Inch male thread and will fit any camera or mount that uses this mount. please note: The adapter has set screws that can be used to change lens orientation. This is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted. we state “infinity focus allowed” because our adapters are designed to be universal which can prevent some lenses from focusing to infinity at the infinity Mark. set your camera to “Manual’ or ‘Aperture Priority’ for metering. If camera does not release be sure to enable ‘shoot without lens’ in camera settings. all pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.