Complete Guide to 70mm Film

MCB18

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Well, I got my 70mm x 15 ft spool printed. Bad news, it doesn’t work. It was too wide at first, and then I tried sanding down the middle part, and now it’s too small… gonna have to see if I can make an adjustment in CAD and figure out how to get it reprinted since I really don’t want to ask the guy as my school to reprint it (again…)
 

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Sonynolta User

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If you send me the STL, I might be able to give it a try. I have some 70mm, so I could at least trial fit.
 

MCB18

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859
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Medium Format
Sonynolta User said:
If you send me the STL, I might be able to give it a try. I have some 70mm, so I could at least trial fit.
Click to expand...

Yeah I can send an STL. I might make a few adjustments to it.
 

MCB18

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Played around with this some more. Yes, it does work, and it does hold an entire 15’ roll of 70mm. But it is extremely finicky and I do not have any confidence I could load this in the dark.
 

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eli griggs

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Could you try making the inside film tracks undulating, starting with the current starting place as is and a mm or two reaches like a wave in an old fashion apron ribbon, so it'll hold the film in place but able to cope with various widths in general, without the need for such fickled precision?
 

film4eva

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Sep 23, 2024
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California
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35mm
Ilford has started their ULF for 2025, and I noticed they have 50-foot rolls of 70mm in either no-perf or double perf emulsion-in. Have to be manufactured in multiples of 15. I'm going to be looking for a place to buy a roll or two. @rhizomeblur Zach - any plans for Mercury to participate? I think, based on last year's ULF campaign, that the FPP will likely accept orders. Anyone else know of other retailers that might?
 
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