Quote Originally Posted by David A. Goldfarb View Post
The DaYi 6x17 back I had was quite sturdy and had no plastic parts, and it had a straight film path. It didn't have a frame counter or the large roller and constant film tension of a Linhof back.

Confirming Oren's post, my Sinar Zoom back does 645, 6x6, 6x7, 6x9, and 6x12.
I was looking on eBay, the sonar zoom looks like a really solid body, and you can switch film sizes on a single roll

I think I want it!

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