Re: Camera size and lens size.

[graywolf]

A lot of other things affect that perspective. The focal length of the 
lens has something to do with it but not as much as most folk think. To 
give an idea, if you take a 35mm photo with a 100mm lens and make a 
5x7.5 print and view the print at 10 inches then the perspective you see 
is exactly the same as you saw before you took the photo standing where 
you were. Notice all the things involved in that sentence.

No the reason is that a cheap 3 or 4 element lens covers approximately a 
angle of 45 degrees which give you a circle of coverage approximately 
equal to the diagonal of the film, and also a focal length approximately 
equal to the diagonal of the film. It was simple economics like so many 
other things that folk try to subscribe some arcane meaning to.

J. C. O'Connell wrote:

Dont think i agree. The focal length of the
normal lens it what gives a normal perspective,
not compressed like a tele or stretched like
a wide angle.
& yes, I know focal length doesnt affect perspective
directly, but it does indirectly...


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--graywolf
http://graywolfphoto.com