I used to shoot Nikon in film era, that was F90. At present I am not so versed with newer Nikon equipment. Here is my question - how accurate is those lenses wide open with D610 camera when you shoot headshots, half-lenght portrait, etc. Here is another question - what resolution does the good 85/1.8G give when you shoot full-lengh wide open. It is what everybody knows and it is proved by the practice - Canon (EOS 5D mk2) with its 85/1.8 is not accurate wide open and the number of misses is huge. What would you say in this regard?