After a few years with the Sony Alpha 7II, I bought the 7R III and am of course thrilled with the sharpness, speed and image quality.... HOWEVER, I don't understand why the magnifying glass doesn't open in AF mode during manual sharpening on any of my lenses, all original Sony, as it does on the 7II? Also, my "always-on lens", the Zeiss F2.8/35, is very difficult to mount, whereas with the 7II it is mounted very simply, normally.
Does anyone have any advice?