Thank you for answering pentaxuser! Chemicals were fresh when I mixed them (cannot prove they were fresh in the class). And no, there weren't other students in the class. I'll try developing in the same conditions but with no expired film, but I still wonder if it is something that I am doing wrong, since I have sent two rolls of this same expired film to the photolab and they developed ok!Provided your chemicals are fresh and it looks as if they are from what you say, then I can see nothing wrong with your process. The only "wrong" thing I can see is the out of date film which may or may not be the problem. Were there other students developing film in the class as well? If so did they use the same chemicals and did they have the same problems. If they didn't then it seems almost certain that it was your out of date film
pentaxuser
Hi rudeofus, I am quite sure it's not a scanning issue since the film already looks wrong (see third picture).Are you 100% sure that the scanning process didn't mess up colors? Unless you do test strips and color charts plus density measurements, there is no way you can tell from scanned images whether negative colors are off ...
If the space between frames is indeed green as shown, then yes, something is off. Somehow the red sensitive layer got fogged, likely by old age. You should be able to correct quite a bit of fog when you post process the scans. If you have many of these old rolls, you could try adding some extra Potassium Bromide to your color developer, a starting amount of 0.5 g/l may work.Hi rudeofus, I am quite sure it's not a scanning issue since the film already looks wrong (see third picture).
I don't have access to a color enlarger, I guess I would need one of them to do those test strips you mention, wright?
Thanks to all of you for your answers. I have recently bought potassium bromide to prepared caffenol-c-h, so I'll give it a try.
Hi mnemosyne! I know, that's what I am trying to figure out. I am sure it's not fogging (I put the roll into the tank inside a safe bag, and my tank has no light leaks).Instead of trying to cure the symptoms, you should rather figure out a way to eradicate the cause of this problem, i.e. the (safe) light fogging in your darkroom.
Thanks pentaxuser, as I said before there were not other students in the class, I took a private lesson in Buenos Aires with a guy who I will not waste time describing here... hopefully you will guess why I could not tell how fresh were the chemicals. I used a changing bag and prepared brand new fresh chemicals myself the second time I did it! So, no: light leaking and expired chemicals are not in the problems list. Also, I insist: this very same expired film was developed in a professional photo lab in Buenos Aires and turned ok. Thanks again!I do not want to put you off listing all the suggestions you have received elsewhere about pre-washes, washes etc and then trying them out but frankly I think this is a waste of time and dispiriting as well unless it works which seems unlikely.
Your process looks fine provided all the temps were as they should be and none of the steps were missed out.
I'd get a brand new film, expose it correctly then mix the chemicals yourself and process it. What checks were carried out by the teacher who doesn't seem to know very much to ensure that the chemicals were fresh? I go back to the point about what happened when others in the class use exactly the same chemicals. I take it you can be sure that the "class" chemicals are fresh and were correctly mixed.To be doubly safe I'd use a changing bag in as near total darkness as you can find and check that there are no leaks in your tank, although this sounds an unlikely cause.
pentaxuser
So the second set of 35mm negs are either chemically or light fogged? He either has been very unlucky or needs to ensure that his film is purchased as fresh stock.Well, the negatives above have clearly been chemically or light fogged! There is no question.
PE
I have shot and processed a lot of expired films of many different types. It looks to me the OP's problem is not because the film was an expired film. It looks to me more like a processing error. Either it is a result of not sufficient amount of developer used or the processing temperature or time was off. I have shot and processed films expired before 1999. They came out with great images still. But I noticed that the films that old are grainier.Provided your chemicals are fresh and it looks as if they are from what you say, then I can see nothing wrong with your process. The only "wrong" thing I can see is the out of date film which may or may not be the problem. Were there other students developing film in the class as well? If so did they use the same chemicals and did they have the same problems. If they didn't then it seems almost certain that it was your out of date film
pentaxuser
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