Wista (and possibly others) also make a modified thicker rollfilm back. It has sliding 'wings' that allow it to take pressure from a spring back frame, but also works with a Graflok system. I have 6x7 and 6x9 versions of this back. They work fine in my wooden Wista field camera, but do push the springs pretty far. The wings need to slide down for the film advance lever to operate. You'd have to check to see if they would work with the spring system on your camera. Thickness from the front face to the wings is 47mm. That's the distance from the front of where a regular film holder would rest to the point on the 'wings' where the wooden spring back frame would rest.
Last edited by Lee L; 05-28-2009 at 04:48 PM. Click to view previous post history.