127 film from 120. How long?

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I've found myself with a few 127 cameras that I might like to try out. I've already tried a couple using 35mm film with new masks and roll spacers.
For the next few, I might try some 120 film cut down to size.

I read that 127 cameras gave 12 4x4 exposures per roll, not the 16 that i might expect on 120 length.
I think that I will be OK with the film cutting, but will a full roll of 120 be too thick for these cameras?

EDIT: Remembering that one of the cameras that I modified had plenty of space for the 35mm cassette, but another would need to have something thinner. So I guess that the answer is that it is related to the camera film chamber size... Try it and see.
 
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I made what looks similar to a miniature carpenter's mitre box to position a blade of a craft knife nicely perpendicular to the roll of film.
With a little pressure on the knife, I twisted the roll (with the blade in nearly the right place) and cut through the film and backing... in relatively dim light.
I didn't cut enough off by maybe 1/2 mm and had to loosen one end of the metal 127 spool to take the width.

So, after a bit of a struggle in the changing bag, the film was wound onto another spool, now the wrong way round, then back onto a 127 spool.
I was pleased to find that the whole 120 roll went onto the 127 spool without being obviously much thicker than would fit into a fairly slim 127 camera.
It's in the camera and I can see frame numbering in the little red window! I hope that they are the 16-on numbers that I see.

EDIT: well, having not thought it through properly, I was left with a 50-50 chance that I cut off the wrong end of the roll. Of course, I had cut the wrong end off. On top of that, the film must be loaded backwards in order to see any numbers (at least for the 1-16 scale). I have rewound the film onto the spool backwards (from the "exposed" end) and can just see the bottom of the number 16. I hope that this gets easier or maybe the cameras will all provide poor results, so I may not have to do this many times.
 
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AAMOI if you are doing your own dev then Paterson universal II tank does 127 film....plenty on the bay.
 
excalibur2 said:
AAMOI if you are doing your own dev then Paterson universal II tank does 127 film....plenty on the bay.
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Yes, thanks. My Paterson Super System 4 35mm tanks have reels that adjust to 127/120/135, but the single 135 tank is not deep enough to accommodate it. The double tank is fine for one 127 sized reel, so I guess that I should manage. Just one thought: the film is wound tightly on the small diameter of the 127 spool that I can imagine some difficulty in getting it on the dev tank reels.
 
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