The Roll Film Slide Adapter attaches to the back, in place of the 4x5 back. It has a groundglass focusing panel on one side and a roll film holder adapter on the other. After focusing, it permits quick sliding of the film holder into place. It will accept Graflex, Wista, Mamiya RB and Horseman Graflok type roll film holders.
AUTO INTERLOCK CABLE (WIAILRC): Connects the back to lenses in Copal Press Shutters