The NOVOFLEX A-Mount to Mamiya 645 lens Adapter from NOVOFLEX allows a Mamiya 645 lens to be mounted on many 35mm format and APS-C size D-SLR and mirrorless cameras. A second camera specific adapter (CANA-AF, FUXA, LEMA, NIKA, etc.) is required. Although the lens will fit physically, automatic diaphragm (AE metering), or any other functions are not retained using this adapter. In this case you will need to meter in "stop-down mode" since the lens does not have the ability to have its aperture controlled by the camera body.