Replacement foam for Wista 6x9 film back?

[SeanEsopenko]

I have a Wista 6x9 film back that has a pretty serious light leak. Where do I source out replacement foam for it?

[Steve Goldstein]

Contact Jon Goodman, who posts frequently over on APUG. He sells foam kits for resealing all sorts of cameras, I've bought them for Olympus XA and Nikon FM-2. He may not have a proper pattern for a Wista back, but if you were willing to send it to him he could likely provide the proper seals and make a pattern to use to fulfill future requests. Jon's a great guy to deal with, BTW. IIRC he's near Dallas, TX.

[Ian Gordon Bilson]

Not only is Jon most helpful,he also describes a neat trick to establish the thickness of foam you will need.
I'm sure he won't mind a re-hash. Put a small blob of soft modelling material inside folded paper,apply and close back gently. Open and measure. Add a little for the compression factor and you know what you are looking for.