Curve_in wrote:
I understand what you are trying to say. If I shoot a tree with a 200mm lens on a FX camera and then shoot the same tree with a 300mm lens on a DX camera, I can crop the image from the FX camera and I'll end up with the same image. I do agree with you on the point of needing a 450mm lens on a FX to get the tree to fill up the same portion of the image as using a 300mm lens on the DX camera.
Not the same image with a D750. Far less pixels. You can get about the same with a D850.