I have been using a Canon 6D for a few years and have a Sigma 50 Art, Sigma 85 1.4 & Canon 135L that I use with it. I also have a Sony A6000 that I use when just running around when I don't want to take the bigger DSLR with me. I have really enjoyed the A6000 and am contemplating getting the Sony A7RII (really good deal from someone). I know that I can adapt my lenses with a Metabones iV or Teacart DEO Saker Light adapter (Supposedly offers the continuos eye AF whereas the Metabones doesn't...is this correct?) I would probably be looking to sell the Sigma 50 Art and get the Sony 55 Zeiss, but I would want to keep my 85 & 135L since I mainly photograph my children and I love those lenses and the alternatives on the Sony are too expensive so i would like to use them.
So, 1) would those two lenses work well with the adapters. Is the AF going to be better than my 6D or atleast close to it with the adapter and lenses. I imagine the pictures and resolution and Dynamic range will be much improved. I mainly shoot my children, 4 year old and 16 month old and I enjoy portraits and environmental portraits of them. I do some tracking with them running around and have had good luck with my A6000, so would the A7RII be comparable in the AF? I mainly just used center focus point and recompose on the 6D since that was the only cross type Point on the 6D so tracking wasn't great on that camera, so would this a7RII be much worse? I hear low light focusing is problematic at times, as well.
Does anyone have experience with any of my lenses and which adapter would be best for me? Just curious if people regret making the switch from Canon and if what I would be looking to shoot, portraiture, environmental portraits (I don't do wildlife or sports) would work well with the Sony. I really like the continuous eye AF and not needing to Microadjust lenses on the Sony.
Thanks






