Quote Originally Posted by alex from holland View Post
I am just wondering
Why are lenses never mesured in quare formats.
We always talk about lenses suitable for 4 x 5, 8 x 10, etc.
But they actually cover 5 x 5 or 10 x 10.


Alex
Square format film, film holders and camera backs are not common. Why fit a lens to a format that does not exist.