It took me awhile to get to a finished camera. I purchased the Deardorff 14x20 back first. Then holders and film. Then finally, Richard adapted the back to his camera. My film is from the Photo Warehouse. They used to custom cut film to ulf sizes, but don't anymore. The film is FP4 so I will place a custom order with Ilford from now on. Ilford will custom cut but there is a minimum order required.