Since the A7R got the SLR form factor, how about using it with SLR lenses? Most lenses I have tried feels with this body. Of course, the drawback is the much slower AF speed. This could be how it looks like when more mirrorless cameras are replacing entry to mid range DSLRs.
LEICA APO-MACRO-ELMARIT-R 100 mm f/2.8
LEICA APO-MACRO-ELMARIT-R 100 mm f/2.8
This could be the combo that produces one of the highest IQ in 35mm format.
LEICA APO-MACRO-ELMARIT-R 100 mm f/2.8
Contax Zeiss Distagon 35mm f/1.4
Contax Zeiss Distagon 35mm f/1.4
Contax Zeiss Planar 85mm f/1.4
Contax Zeiss Planar 85mm f/1.4
Canon 85mm f/1.2 II
This lens shares the title of "King of Bokeh" with the 135STF!
Canon 85mm f/1.2 II
The monster eye
Canon 85mm f/1.2 II
It looks balanced with the lens but the lens is just too heavy for this camera
Canon 35mm f/1.4
This lens is quite light and works well with the A7R.
Canon 35mm f/1.4
Contax Zeiss 50mm f/1.4
A very sharp lens at a very reasonable price*
Contax Zeiss 50mm f/1.4
Contax Zeiss Distagon 25mm f/2.8
Great lens. I got the W Germany ver. It feels very balanced with the A7R.
Contax Zeiss Distagon 25mm f/2.8
Canon 17-40mm f/4
A great ultra wide solution for the A7R
Canon 17-40mm f/4
Canon 24-105mm f/4
A little on the heavy side. I'd say this size is pretty much the limit to be used with the camera.