Happy Hols to everybody!
OK, that's out the way, now is the time to stop eating and drinking and put your serious head on. The A7R is a bit like the joke about the lost motorist stopping to ask directions, and the yokel answers with 'well I wouldn't start from here'. With the A7R many people aren't starting in the right place, or with a clean sheet, their current lenses (focal lengths and manufacturer's) aren't always working as well as they would want them to (obviously Leica M and derivatives come to mind). So, the question is...
if you could choose a single manufacturer of (affordable) SLR manual focus lenses to use on the A7R, which would it be?
Would it be Nikon, Olympus, Canon etc? I qualified it with 'affordable' just to stop the default being Leica R. Try to think outside of what you just happen to have to what you wish you had, as a set, to use with the A7R. I think the answers may clarify a route map for ditherers to the A7R concept, instead of the bewildering number of posts about the awesomeness of individual and varied lenses on this camera.