In the trade, the curl which takes place the length of the film is called piping, as it makes the film look like a length of pipe. The other curl is called curl or 'set' because it comes about by being rolled onto a roll. It is most prevalent on older film or film stored improperly. If you have both types you are in a world of hurt.
Film that curls before processing is old or has been stored very poorly and is difficult to thread onto a processing reel.
I tried this stuff in 120 for a very short while, I can only hang so much weight on the line I dry film on. I've used two weighted clips and didn't help a bit.
I'm like the OP, if you can get it into sleeves it took weeks not over night to get it semi flat.
My experience is the same. I can live with it---I mainly use this film for "smoke-testing" new cameras and the like---but it does take some extra effort. I can get it into sleeves without too much trouble now; my technique is to bend it slightly in the transverse (short) direction near the point of entry into the sleeve. What's *really* hard, I think, is cutting the roll into strips and keeping it from sproinging into a tight roll as soon as the weight is gone.
I could live without Fomapan/Arista, but not without some other seriously curly films like Adox ORT25; I'm stuck dealing with curl anyway, so I might as well put up with it from the Arista film as well.
I occaisionally use Arista Ultra EDU in 120 also. Seems ot be ann in tersting film, but I get the same curl no matter how I dry, weighted, unweighted, stored inside neg files under a large book for a few days. The only way around it for me is to stop down my enlarger lens 2 stops more :-( I use it very occasionally though so I can live with it for the times I do use it. I also use Fuji ACROS and it does stay flat, but is very thin.
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Yeah, what I don't know is why arista.edu in 35 mm is so flat that it takes a few seconds to figure out which side is the emulsion side, but they can't do that with the 120 size.
Maybe I'll just switch to acros for 120 and keep using the arista.edu for bulk 35mm and sheet film.
Well, as has been argued elsewhere, some 120 films are coated on thinner support, but even so, all things being equal, the narrower the film the less curl in either direction.
PE
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Foma (aka Arista.EDU Ultra) films are also odd in that the 35mm variety has a clear/gray base and poor anti-halation characteristics, whereas the MF variety has a blue base and much better anti-halation characteristics. I'm not sure what the story is there, but it could well have something to do with the lack of curl in 35mm vs. substantial curl in MF to which Bobby refers.
Foma (aka Arista.EDU Ultra) films are also odd in that the 35mm variety has a clear/gray base and poor anti-halation characteristics, whereas the MF variety has a blue base and much better anti-halation characteristics. I'm not sure what the story is there, but it could well have something to do with the lack of curl in 35mm vs. substantial curl in MF to which Bobby refers.
How bad is the halation on the 35mm version? Worth playing around with for effect? Or just bad enough to be annoying?
but they can't do that with the 120 size.
Linear Mode
