I'd like to buy one or two affordable and dependable 6x6 roll film backs for use with my Sinar F2.
binglebugbob says that if a Graflex, I should "look for a shell with the chrome pin rollers on each side of the film gate. The pin rollers are about the diameter of the lead in a wood lead pencil. The early ones didn't have them and the early ones don't hold the film as flat. The Graflex backs with lever wind inserts originally came in a shell with pin rollers, but you have to check because over the years, inserts and shells often got switched around. So you could find a lever wind insert in a shell without the pin rollers."
I'm not familiar with the various brands and types, so contact me with what you have that would work well for my purpose.
Thanks,
Keith Ostertag