Compare against Prakticar 200/2.8 > http://www.pbase.com/image/144156425 in these shots, MD 200mm looks sharper than Prakticar 200mm, so which is sharper? Surprisingly they share almost the same optical design, don't know which came first. But most likely MD 200mm came first, Prakticar 200 later from the middle of 1980s. See MD200 > http://artaphot.ch/minolta-sr/objektive/174-minolta-200mm-f28 See Prakticar200 > http://www.pbase.com/kkawakami/image/58601505