But for the A7CR and the other Sony R cameras you need a superb lens to fully exploit the potential of 61mp in order to get everything tack sharp across the entire image. I mean G Master lenses. I guess the Sony G Lenses are good enough too?
The Sigma fp L has the same sensor. I've found that Sigma's i-series lenses are certainly up to the job, with the 35/2 and 65/2 (in particular) being outstanding.
I'm still hoping we'll see that sensor in an S1Rii or S5R.