>>3615960I have an adapter for this 400mm f/6.3 prime now. I just came back in from test shots(pic). I was trying to get some shots of red tail hawks soaring overhead, but god damn, just finding them with this is super difficult. Doing anything handheld is nearly impossible since it is 1,860mm equivalent; which also results in pretty severe CA. Even on a tripod the wind shakes it around pretty well.
At least I'll be able to use my 200mm f/3.5 Vivitar now.