John_F wrote:
Is there an article of some kind somewhere that gives the focal length ranges for different type lenses: fisheye, 1:1, macro, wide angle, normal, telephoto, etc (if there is an etc). I have been trying to reckon from the optics lens formula and that for magnification. Is there an alternative description using 'angle of view.'
This mite help it doesn't cover the fisheye but mite help some.