I have this exposed roll of 120 film with no markings on it other than FILM 120 EXPOSED and it’s not like any film I’ve shot before. Anyone seen this style/font on their film? I assume it’s B&W but could use some clues on how to process it.
I've just been scouring the internet for images of backing paper and I think this might be right. CatLabs or Shanghai both have this sorta black backing paper best I can tell, the look feels "off brand" to me.
Dev times appear to be the same in Rodinal for Catlabs 80 and Shanghai 100 also. I think this is enough info to take a stab at it.
I'll never know for sure but I saved the paper after loading it into a tank and it looked exactly like the stuff below, with that same 4 with the curved angle. So I think it was CatLABS. There was also no brand/iso marking at the beginning of the roll or on the foil packaging, which is all I had of it. The base was also rather thin and very very curly, if that's any indication. Films like this make me quite grateful for Ilford products.
I processed per the CatLABS Massive Dev Chart time for Rodinal and the 10' at 1-25 is what I would consider overcooked so it's still a bit of a mystery. I can safely say it was not Bergger Pancro however, as the grain is very fine compared to that film.
After using Rodinal for 40 years I'm using 1:25 just to process only near "graphic" black and white ultra high contrast films. 1:25 is like washing champagne glasses with rough sandpaper and sledgehammer. Of course, if you like it, no worry, keep doing it!
If you have unknown film to process: Rodinal 1:100, 20C, regular one minute agitation for 15-20min. You will get usable results
I have had that problem. The film type is only on the beginning of some rolls, so I have had to load the film in the tank or rewind the roll in the dark to find out what it is.
I've used Rodinal off and on over the years and always remembered liking 1:25 more than the other dilutions but maybe I just got it backwards. Anyway, I shall heed this advice in the future. While some of the photos are pretty cool (IMO of course), overall it does look like they were developed with a sledghammer.
That looks like Shanghai GP3 to me.
I have some in 220 ...the paper and the font on the seal are identical.
BTW, I use Rodinal as my developer of choice.
It is highly economical as a one-shot developer, and easy to mix/versatile in varied dilutions.
I don't mind grain, as long as it is SHARP grain.
But then again, I consider 120/220 film "small format".