Quote Originally Posted by MattKing View Post
What if there is a slight difference between the cameras with respect to the distance between the film and the front of the lens mount?

Isn't rangefinder calibration designed to take the peculiarities of the camera into account?
Yea but if on one camera body it's telling you something is 7 feet away and you put that lens on the other camera and it's telling you it's 6 1/2 feet away, what accounts for the half foot difference?