I'm going to be making both the camera backs and film holders for both of these formats, buuuuut.....
Checking these two pages
I'm confused. The more I read the less I understand
1: There seem to be two competing 4x10 film holder dimensions
Which is the most popular? I know I read the rationale somewhere between the two different options, but it's a case of the more I read the less I remember some times.
Is it possible to cut 4x10 from 8x10 with one cut
2 7x17 film holder dimensions from the S&s film holders page don't make complete sense to me, for example the rob lock dimension is listed as 3/16" (4.8mm in metric) which is extremely large (wide) in my mind.
Also the two pages have different T dimensions?
I'm going to make the holders first then the backs, but would like make everything to the most current and "popular" specifications so any help appreciated