Quote Originally Posted by John Koehrer View Post
I too would go with a used back. Because.............
The front of the focusing frame and the ground glass is known as the "T" dimension. It's the setback from the face of the frame to the ground glass. To focus and then have your film in the same plane this has to be accurate.
And believe me, it is a major b*tch to machine without expensive tools. Took me a whole day of tedious sanding...