[Tord555]

I understand that you have found the 70-300 "CX" on Nikon 1 to be better than the 80-400mm on Nikon 1. That is why you sold the 80-400mm?

But how was the 80-400mm on your full frame camera compared to the 70-300mm on the Nikon 1?

About as good, to about 250mm, maybe a bit longer (my sharpest shot ever, of the moon, was taken at 165mm!). Greater DR for the D600, of course, but not quite Ok over 250mm. So I am very happy now with the 70-200/4.0 on the D600, and then the 70-300CX on the V2. 

 

Maybe the result with a D810 had been different, I don't know!