[davidmanze]

 

 

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.

 

 

 

Do the latest Sigma lenses Art, sport and contemporary identify themselves as completely as Nikon ones?

 

Do they now have problems with AFFT getting applied to the appropriate lenses..........or is it necessary to do all AFFTs from the USB dock?

 

   I don't know the answers JoJu, à vous!