Gene51 wrote:
This is all fine and good, but it only applies to field of view. When choosing a lens for any purpose, it is important to consider how the lens handles perspective and depth of field - both of which will change when you change formats.
So, no, using a 250 - 310 mm lens on an 8x10 camera is not going to be the same as using a 33 - 41mm lens on full frame. The field of view will be similar but that's about it.