> If a single-focal-length lens is "prime", then what is a > variable-focal-length lens (zoom)?
Well, OBVIOUSLY, since the single focal length in use at any one time is shifted back and forth, it's a "prime mover" - <g>. Fred
> If a single-focal-length lens is "prime", then what is a > variable-focal-length lens (zoom)?
Well, OBVIOUSLY, since the single focal length in use at any one time is shifted back and forth, it's a "prime mover" - <g>. Fred