I just bought a used Rodenstock Sironar-N 210mm lens for my Graphic Veiw II. I mounted it to the lens board and it will not sit flat against the board due to a set screw on the back of the shutter, a copal 1. The lens rocks ever so slightly. This screw protrudes about 1mm. The GVII lens board is 3mm thick and the hole is 43mm which seem to meet the lens' requirement from the Rodenstock web page. Am I missing a flange of some sort?
Also the shutter does not seem to be firing at the correct speeds all of the time. Is this related to the scew?
Thanks for any help on this problem.