get the 1.4 .... My favorite lens by a clear mile
it feels solid, its fast, it sharp and being able to open the aperture up to 1.4 means you can shoot in a darkened room without flash ..... it loves babies and faces, you can at close range narrow the DOF right down so the only the face or even just an eye is in focus and not need a flash.
85mm is too big for a crop sensor indoor personally, I find even with the 50mm I fall over stuff walking backwards ... at 85 mm I would be in the wall for some shots
get the 50mm .... and splash out on the 1.4, its worth every penny
I truely love it .... love it love it love it love it love it
