Check with fred Newman at the view camera store, and also Simon from ilford on the process. I heard they changed the process so you can request any size, but you have to do it before the list is finalized for the the season.It was mentioned recently somewhere on apug. I presently have a bunch of5" aerial, 8" original cirkut film, 9.5" aerial, and even 16" rolls so I'm good for now. I've been messing with a few 7" al vista cameras and would love to get some 7" thin base film, but don't want to spend money right now.