Designed for the gfx format camera, allowing hasselblad v mount lenses to be mounted onto gfx format camera bodies. With this adapter, although the lens will fit physically, automatic diaphragm, auto-focusing, and other functions will not work, only manual model will be available. aluminum alloy, with perfect surface finishing and super precise design. the lens adapter lens adapter is material ,it can serving you for a long for time. for for feature is available for use with our camera adapter.