Solid metal design made of brass, anodized aluminum the KIWIFOTOS ConTAX G-C/M mount adapter allows CONTAX G lens to fit onto Canon EF-M interchangeable lens camera. The adapter is designed with a 360 degree focusing ring in the round side allows the lens to focus precisely. The lens will fit physically and the camera works in manual mode with the adapter. 

Note: Some of the CONTAX G lenses, i.e., 16mm, 21mm, 28mm,35mm, 45mm and 35-70mm zoom, have big protruding rear element, preventing the lens to be mount on CANON EF-M body.