Quote Originally Posted by Sirius Glass View Post
First, are you dealing with 35mm film?
Second, if you want more enlargement than one gets with a 50mm lens for 35mm film, you need a shorter focal length, not a longer one.
He's talking LF 5"x4"

A 135mm is a nexcellent choice, I've made large prints with Compono/Componn S lenses with no issues, They are designed for the format.