Fine finish made of black anodized aluminium the KIWIFOTOS LMA-FM_EM lens mount adapter allows Canon FD lens to be used on any Sony E-Mount camera body such as Sony NEX3/NEX5 Camera. Although the lens fits physically, automatic diaphragm, auto focusing, or any other functions will not operate correctly. Use the lens in the fully manual exposure mode (M) or AV mode in auto exposure. The adapter is equipped with a "ON/OFF" aperture control ring for user to set the designed aperture. Select MF assist function to focus accurately (7x or 14x zoom focus). It is also available to Infinite focus. Note: Shoot without lens function must be turned on.