Fine finish black anodized aluminium metal design the KIWIFOTOS LMA-MD_EM lens mount adapter allows Minolta MD mount lens to fit on any Sony E-Mount camera body such as NEX3/NEX5 Camera. Although the lens will fit physically, automatic diaphragm, auto focusing, or any other functions will not operate correctly while using this adapter. In this case "stop-down mode" need to be used when metering since the lens does not have the ability to have its aperture controlled by the camera body. Use the lens in the fully manual exposure mode (M) or AV mode in auto exposure, the aperture display is not available, however. Select MF assist function to focus accurately (7x or 14x zoom focus). Infinite focus is available.