Now I have a Fotodiox pro and a Metabones IV T adapters. Sigma 35mm f/1.4 with Metabones IV on A7Rii is flawless. However the Canon 100mm f/2 on A7Rii has big problems: back-focus with metalbones and hunting with Fotodiox. Well fortunately the same 100/2.0 lens works flawlessly on A7ii with Fotodiox. The A7ii with FW2.0 is really so good with Canon lenses. Next time I will use the 100/2.0 lens on A7ii to do some portrait works. Sigma 35/1.4 on A7Rii with metabones: Photos removed (bikini model). Cropped images uploaded. Canon 100/2.0 on A7ii with Fotodiox: Just test shots, bear with me. Will post portraits later.