Hi Dan, I agree and I don't agree . Of course it is possible but it depends how much time I am willing to invest. For me my files from D810 or X-pro1 afford much less time to get a satisfying result than files of the a7r2 irrespective if converted in LR, C1 or Iridient. And I know some really good photographers who are much fitter in computer adjustments than me who assert the same.Anyway for me the best file would be the one I don't have to work on a lot because I prefer being in nature than on my computer but this is only my oppinion