Hoping to join this crowd soon as I'm solely a landscape shooter and the A7R may be a better option than my 6D. Any one foresee any comparability issues with my lenses? I was trying to avoid dropping $400 on a Metabones adapter but that seems to be the best option. I'm not concerned about AF since my 70-200 doesn't get much use and when it does, MF is just fine. But I do want electronic aperture, etc, and exif for LR lens profiles.