Almost all post discussions on super-tele lens discouraging MF.
I understand the compelling differences when shooting bird in fly or the equivalent fast moving objects. But I found it requires not only AF, but must be the best available fast and accurage AF, and it is a combinatin of the lens and the camera body. A typical 70-300mm AF zoom is hardly useful. So far the only claimed satisfiable setups are among the best DSLRs + the best Canon or Nikon AF 400mm~600mm f5.6 or F4 super fast prime lenses.
So, the question is, does it make any real difference between MF and not top notch AF if the lens is 500~600mm, f4, and is shooting bird on the tree?