fantastic solution if You have canon AF lenses and want to use them with Sony A7II and III. I happened to own/use Canon 5D mark IV with Sony A7II and III Full Frame bodies. As far as Canon glass I own 24-70mm F2.8 II L, 70-200mm f2.8 IS L, 50mm f1.8 STM, 85mm f1.8, 100mm f2.8 L macro and all of them...