01-26-2018, 11:45 AM
Well dave, I work in a machine manufactory. All I can say is that most designeres here are too young to know the machines we made 10, 20, 40 years ago. All grinding machines. The engineers simply do not have the industrial-historic background - so sometimes they make mistakes we already made a decade ago.
I do not believe that the designers of a D90 knew which lenses Nikon would produce a decade after the camera introduction, same with 20 year old lenses. We don't see incompatibilities inside, just as a result and then it's already a problem. Or the lenses which were made for a D3, 12 MP, need to resolve and AF with these days nearly 4× higher resolution.
I don't know what my employer wll produce in ten years from today, so how could I adjust myself today? That's what I meant with reverse engineering - Sigma or Tamron will analyse both brands and probably know a lot more about Nikon AF than Canon does or vice versa. There's no need to compromise things for other mounts.
I do not believe that the designers of a D90 knew which lenses Nikon would produce a decade after the camera introduction, same with 20 year old lenses. We don't see incompatibilities inside, just as a result and then it's already a problem. Or the lenses which were made for a D3, 12 MP, need to resolve and AF with these days nearly 4× higher resolution.
I don't know what my employer wll produce in ten years from today, so how could I adjust myself today? That's what I meant with reverse engineering - Sigma or Tamron will analyse both brands and probably know a lot more about Nikon AF than Canon does or vice versa. There's no need to compromise things for other mounts.