I got a 7.5cm Tessar for my 2X3 Pacemaker. I got a board and have made some nice pictures with the GGlass. I'm wondering how to find/make a good scale to scale focus with it? Is there a 75mm scale for the Speed Graphic 2X3? I don't want to re-cam, because I like the 105 I use. Thanks,
M.Bachofen

Sorry but there's no Graflex focusing scale for 75mm. When you think about it, the scales are for the lens, not the format. They had one for 65mm, but the next one was for 80mm.

You mention cams. To change the rangefinder setup for a different lens on your camera, all you do is adjust that eccentric [which is sorta like a cam - just wanted to be sure you understand the difference] on the right side [side with rangefinder]. It's really not that hard to do. That rangefinder does not use interchangable cams. That was only for the 4x5s.