what caused this sort of things?

[HLing]

Using borrowed reels(4) and tanks(2)I developed 6 rolls of film today.

I did them in 3 batches of 2 rolls each. Batch 1 and 3 using the same reels and tank.

1st batch: 2 acros100, 2nd batch: 2 HP5+400 3rd batch: 2 acros 100.

There was one roll per batch that had stains like this. one was at beginning of roll, one in the middle,the other one at the end.
The other roll of the 2-roll batch was alright.

Can someone enlighten me on what caused this?

 

[julio1fer]

The white patches look like unfixed film. Probably the emulsion side was contacting something that prevented access to the fluid.

You may run it through the fixer again - at worst, no harm will be done. Then wash thoroughly as you do after normal fixing in your workflow.

 

[Rob-F]

The white patches look like unfixed film. Probably the emulsion side was contacting something that prevented access to the fluid.

You may run it through the fixer again - at worst, no harm will be done. Then wash thoroughly as you do after normal fixing in your workflow.

That is undoubtedly what happened. However, since the fixer could not come in contact with the film, it is doubtful that the developer did, either. Fixing the affected area will probably result in a blank or nearly blank area.
Still, it is probably worth a try!

 

[HLing]

Thanks Julio1fer and Rob-F for your replies. Maybe I should have agitated more at the beginning of developing. Could be I didn't roll the film properly and some parts got stuck. The negatives are already drying. I guess it's too late to do anything. Next time I'll be extra careful.

 

[Freakscene]

It's not too late to re-fix.

Marty

 

[Livesteamer]

Could it be that they were not wound correctly on a stainless steel reel? I agree that it looks like the film was touching something and the chemicals could not get to it. Joe

 

[Rob-F]

Could it be that they were not wound correctly on a stainless steel reel? I agree that it looks like the film was touching something and the chemicals could not get to it. Joe

Yep! I've done it! All it takes is for the film edge to buckle so that the film jumps its track and collapses onto the previous coil. To avoid this, the film must be squeezed into a curve: not too flat, or it won't fit between the rails; and not pulled too tight while winding, as that will buckle the edge into a "crinkle." Once that happens, the remaining film after the "crinkle" will not wind on properly. Pinch the film into a curve, and wind with just a light tension. That's the key.

When it's going well, the film edges make a whispering sound as they find their way onto the reel. Wind-wind, "Shhhh-Shhhh" wind-wind-wind, "shhhh-shhhh." When it's going wrong, it's wind-wind, "crackle crinkle." Then we must back up, correct the error, and finish loading.

Stopping every so often to jiggle the film back and forth very slightly will tell you if you are doing it right. When you slip it back and forward, it should move freely. If it feels stuck, back up and re-do it more carefully.

 

[chris91387]

the film was touching other film on the reel

 

[HLing]

wow!

wow!

You guys are right! even though the negatives are dried already I put the parts with the blob back into the fixer and they cleared up! Yeah, it becomes a clear spot, but now I wonder if some of the rolls were not in the fixer long enough. If it's sort of foggy does that means it's not in the fixer enough?

Is there harm in being in the fixer too long, on the other hand?

Thanks for helping me!

 

[Chris101]

Yeah, you don't want to fix too long - after MUCH longer you start to lose shadow detail. Those blobs are from bad spooling technique when putting the film on the reels - I should know, I've got many of them. It doesn't hurt anything to just leave them, but they will print white. If you fix them, of course they'll print black. Once in a while i like them!

 

[HLing]

It's a good lesson to learn now rather than later, since I've never had this problem before.

I'd learned on the Hewes reels with the two flat taps at the core.

The ones I borrowed looked at first like Hewes, but are made in Japan. These at first seem easier, but then I guess it's a false sense of ease. No flat tabs but points that aren't always lined up.

It's good that my beginner's luck is wearing out and I'm running into the devil's details - this is the real beginning of the trail, isn't it?