Home
Learn about new technologies!

What is the correct answer?

4

The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is

A. f/H sec θ

B. f sec θ/H

C. f/H

D. f/H cos ½θ

Please do not use chat terms. Example: avoid using "grt" instead of "great".