Check out my video on how to load 116 film onto regular ol' Paterson reels. No dremeling or glueing required. Please feel free to ask any questions about 116/70mm film. I've spent the last two years mastering 116 film.
Hi - I reckon it was your video I posted a reply to last night. There's (there was a url link here which no longer exists) that started me looking and I've posted a link to your video there.
Assuming you're buying unperf 70mm bulk rolls, what are you using to spool the film off them to your cartridges? Do you have a commercial 70mm bulk loader or are you doing it in the dark with something handmade?
I don't have a bulk loader. I just load it in the dark. I made a crank that I put on the film canister. Respooling 116 film is easier though. 116 film uses less film and I'm getting pretty good at it.
It occurs to me that if you used a taller tank and either a clip or a custom fitted tube over the central tube, you could ensure that the two sides of the 116 reel don't separate.
Found this: developing 70mm in unmodified Paterson. Shorter lengths, obviously. I just tried the exact same arrangement on a couple of Jobo 25xx spirals and the gap between them is... 70mm.
That seems great, but I just got the idea that it may not work that well with the Jobo 2502 reel (the standard reel from their 2500 system): the Paterson system got a true ratchet system, with all standard Jobo reels one must do that ratchet action by means of fingers. In that trick however the finger sink of the inner reel (to be used) would be somewhat blocked by the lower reel.
I haven't got that reel at hand now, so I can't check whether that one rebate is still accessible enough for easy spooling.
I do the ratcheting with my fingers on the outside of the spools, not the edges; I don't see a problem with this arrangement. Most of the time I just push the film into the spiral and it slides right in with no ratcheting required at all.
Actually the inner funnel puts just enough pressure onto the top reel so that it cant separate. If using a taller tank with 2 70mm modded reels, I'd probably use some type of spring clamp to hold everything in place
I use a Yankee Clipper II for 110, 17.5mm (Hit film) and APS film. It doesn't have notches like paterson reels so it can adjust to any size
People don't like the Yankee Clipper tank because you can't turn it upside down to agitate. We're so used to the paterson method that we forget there's different types of tanks out there