Siemienczuk wrote:
I only have the 200-500. I just watched the Steve Perry vid and as usual, you probably can’t get a more thorough discussion. My only issues with the 200-500 are the size and AF speed. But for wildlife, especially birds, 300mm doesn’t cut it. So you’d likely always have a TC in place. It’s still smaller than the 200-500, but you lose the extra stop. And then there’s the $600...
The 300mm on the D500 (or any Nikon DX) has a crop factor of 450mm good enough for birds it is F4 so by adding a TC 1.4 you increase the crop factor to 630mm and still get a f5.6.