Thinking about the hand-shaking and the focal length of a lens discussion from a previous post, I came to think of another question involving the focal multiplier. I thought I'd post this as a poll instead of a normal post to get a consensus, as I also think this is a rather subtle issue. The question is about the perspective rendered by a lens. We all know that the perspective of a given subject changes as we change the focal length of a lens. If you fill the frame with a 15mm lens, and with a 200mm lens, your subject will look different in the two frames. With the 15mm frame, the features closer to the lens (such as the nose) will be comparatively bigger with respect to features further away (like the ears). The shape of the head may even be different.
The question is: if you mount an 85mm lens on a DSLR (with 1.6x) and a 135mm lens on a film SLR, frame the same subject in the same way, will you get the perspective of an 85mm lens on the DSLR, or the perspective of a 135mm lens?
Reasons?
The question is: if you mount an 85mm lens on a DSLR (with 1.6x) and a 135mm lens on a film SLR, frame the same subject in the same way, will you get the perspective of an 85mm lens on the DSLR, or the perspective of a 135mm lens?
Reasons?