Please tell me I am correct & the pro Is wrong???

oklaphotog wrote:

Another note to that is perspective. Take a 300mm lens and put it on a FF camera and compose to get what you want. Take that same 300mm lens and put it on a crop body and the image will be too tight forcing you to move farther away from the subject to get the same framing. When you move further away from the subject the perspective gets more compressed giving the feeling as if the subject was more magnified.

Simply put, if you put a 450mm lens on a D700 and a 300mm lens on a D300, and shot the same subject from the same distance, the result would be equal FOV and Perspective and they would look identical, aside from the slightly shallower DOF on the D700 due to it using a longer focal length lens to achieve the same FOV.