What are the good 6x7 and 6x9 roll film backs that will fit the Century Graphics? I seem to remember the old style Rb backs would work, but I think there was contention about how good they were.
I use the early RB backs. IIRC, no mods are necessary on the earliest RB backs. On 2nd generation backs (ProS?) you have to file off the tabs on the darkslide.
The Graflex RH-8 & RH-10 backs are very good if they are the later type with the small chrome pin rollers to keep the film flat. I sold a bunch last year that I was not using for around $50 each. They pop up on ebay but are usually bid up way to high.
Ian Grant even bought one of mine for a project he was working on.