Who sells Tachihara cameras and accessories?

[jmcd]

I would definitely send an e-mail to Jim at MPEX. I recently needed a part for my 4x5 Tachi, and Jim really helped me solve the problem.

jim AT mpex DOT com

[Oren Grad]

Possibly the reducing backs for the Wista 8x10 will fit. You might contact Bob Salomon at HP Marketing and see if he can give you the dimensions.