Originally Posted by
Barry Kirsten
I'm glad I found this thread because I really need to know the main dimensions of 5x7 film holders. I'm building a 5x7 camera and am currently working on the rear standard. I really thought I had everything covered as i have a couple of plastic Fidelity half plate holders which I was assured by the person I got them from that they were the *exact* external dimensions of true 5x7 holders. In addition I've downloaded the ANSI standards for film holders and find that the ANSI sizes for 5x7 are different from the two I have in front of me.
I know there's been a lot of discussion here over the years about film holder sizes and that there's a lot of confusion (and variation?), but it would help me if I can get some consensus from actual users of 5x7 of the dimensions of your own film holders. Particularly exact thickness, width, overall length, length from bottom to sealing rib, and depth from front to septum.
It occurred to me that I should buy some from eBay or whatever, but with the lockdown I don't know how long that would take. Any information will be greatly appreciated. Thanks.
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