Yup, it doesn't add up.
But I am kind of stumped as to what it could be...
I think the most likely explanation was that an unexposed roll was accidentally developed.
1. When you say, "Leading edge was blank," can I assume by "blank" you mean "clear" - that is, matching the density of the rest of the roll -- and not "black"?I have developed from the bulk roll previously successfully, and I believe they had edge markings, but i dont remember, its been a while ago. Leading edge was blank.
In the dark, pull out about two feet (or half of a meter) and cover up half of that with something to prevent exposure to the light. Turn on the room lights for a few seconds, then turn them off again. Load on a reel and process it normally.
Yes, but in the case of #1, there is still a bit of a mystery concerning: a. the edge markings, and b. the leader, which would have been exposed no matter what, right?There's pretty much no way you could get nothing on a developed roll of Aviphot 200 unless you (1) didn't expose it or (2) didn't develop it before you fixed it.
Certainly not; agitation would have resulted in at least some developer getting to the film and visible development taking place.If not enough developer was used to cover the film on top and the stick was used instead of inversions, that would explain why the roll on top was not developed.
Certainly not; agitation would have resulted in at least some developer getting to the film and visible development taking place.
If not enough developer was used to cover the film on top and the stick was used instead of inversions, that would explain why the roll on top was not developed.
Just developed 3 films, xtol 1+2, and when I poured out the xtol developer, it was yellow-orange. I know this is a bad sign for xtol, unfortunately I did not develop again with another developer. My suspicion was right, one of the films was blank - no edge markings. It was superpan, I believe this is the same as agfa aviphot and exist in many different brandings.
For all of them, the anti-halation layer that washes out after development is red or dark orange
I developed a roll of Superpan 200 (35mm) last week and the AH dye that came out in pre-wash was almost black.
The dye on the back of aviphot pours out black when you soak the film before dev. if you develop without a soak, it tends to be orange. It's more yellow if you soak then dev.
I filpped through that thread, but if the OP ever did a clip test (as recommended multiple times), I did not see the result.[...]
Also, this thread seems close to my experiences:
XTOL Mishap
1. I mixed up 5 liters of XTOL. I've never used it before. 2. I put two rolls of Catlabs 320 MF film on reels and put them into a Patterson tank. 3. Following the Massive Dev Chart suggestion (I use their iPhone app), I poured 1:1 dilution of Xtol in and processed for 11 minutes. 4. Stop bath...rangefinderforum.com
I filpped through that thread, but if the OP ever did a clip test (as recommended multiple times), I did not see the result.
It is a little bit frustrating when people ask for help, but then don't follow through with additional information, so the issue remains unresolved, and we learn nothing. It's looking like this thread will end that way, too.
No. Besides, that one is out because your other rolls in the same tank developed fine, remember? So the film didn't kill the developer.
It developed at all, so the developer wasn't killed. There's no way one film in the same tank would quasi-kill the developer so that it only developed the other film in the same tank, partially, but not the film that supposedly 'killed' it.They did not develop fine, the successful one was thinner than i would have expected. It might be due to underexposure, however.
And I bet koraks is 100% right. How do I know? Because I use XT-3(Xtol clone) with those films and I have never had a blank frame unless it was my fault. I repeat, my fault!It developed at all, so the developer wasn't killed. There's no way one film in the same tank would quasi-kill the developer so that it only developed the other film in the same tank, partially, but not the film that supposedly 'killed' it.
I'd suggest doing the strip tests I suggested in #8. I bet your Aviphot develops fine in XTOL and that some other cause resulted in your blank film.
But, supposedly, 900mL total volume was used, which covers all three reels in a paterson, so this cannot be it either.
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