DxOMark test: Sigma 50-500mm f/4.5-6.3 APO DG OS HSM vs. Nikon 80-400mm f/4.5-5.6G ED VR | Nikon Rum
AF motor died and I just bit the bullet and purchased the Nikon 500mm F/4. (This lens, though tack sharp, does not seem to do as well with TCs) while I was waiting for delivery in the middle of nowhere I settled down and used the 70-200 with TCs and ...