Quote:
Originally Posted by kailewjay
Budget's not massive but I'm not sure whether to go for a 50-200 or 70-300, am I correct in thinking that the D3100 has a magnification factor of 1.5 so these sizes will increase?
Thanks in advance.
|
No. A 70-300mm lens on a full frame will give the same reach as on a crop camera, only 300mm. What does change is the field of view, as a full frame will cover a bigger area than a crop frame. So that means the FOV of a crop camera using a 300mm lens will look the same as a 450mm lens on a full frame, but the distance to the subject will remain the same at 300mm.
