Purple/magenta cast on negative

[Joel_L]

After processing many rolls of Vision 3 in C41 and getting consistent and good to me results, I got a bad roll today. I'm 99.99% certain I messed something up but am not sure what.

Two possibilities come to mind,

I did not develop long enough, I was trying a shorter time than usual for how I have been doing things, used the standard 3:15 instead of 3:45 I usually do.

I contaminated the fixer with bleach. usually I give the film a good wash between bleach and fix, but this time I went straight from bleach to fix, oops.

This was done on my Jobo.

Would either of these cause the cast I see?

 

[koraks]

It's hard to accurately judge these colors from the photo shown without a good reference. It may help to have a 'healthy' strip of ECN2 film photographed side by side so the nature of the problem in the present roll is easier to see.

But to answer your questions: neither short development nor bleach-contaminated fixer would result in a magenta stain on the film. Here's what I'd try:
* Re-bleach and re-fix the film in fresh chemistry. Observe replenishment rates of your chemistry. Be cautious with re-using chemistry without proper replenishment in case that's what you're doing; it'll get you into trouble sooner or later.
* Thoroughly rewash the film. Although the sensitizing dyes are usually not this strong, they are indeed magenta and can contribute to the defect. However, these dyes are unlikely to be responsible for the entire problem given the apparent severity.

My bet so far is on retained silver due to bleach and/or fix exhaustion.

 

[Joel_L]

So neither of those conditions on their own would cause a magenta stain, that's good to know. When I looked through the Kodak processing docs for C41 and ECN, I really couldn't find that fault.

As far as the rest, I use all my chemicals one shot mixing fresh when I process. That pretty much would leave it to being my chems being dead from age, though I would have though separate bleach and fix to have more shelf life.

Before discarding them, I will do a quick test roll to male sure I didn't mess something else up.

Bottom strip is a more normal one.

 

[Joel_L]

What ever happened was a screw up on my part. I shot another roll just to test the chems and it came out fine, must have contaminated something. But good to know my C41 kit is still good, probably 5 or so rolls left on it. Happy with the keeping properties of the Bellini C41 kit. Bought it in late August, just mixing what I need as I use it.

 

[koraks]

Well, good to hear the problem didn't recur.

Looking at that new photo, it almost seems like the film was entirely and quite evenly fogged to green light. You don't have a green status LED somewhere in your darkroom, do you? We had a person here about a year ago who spent some time figuring out that the smoke alarm in his darkroom was fogging his color film. Such things are frustrating to troubleshoot sometimes.

 

[foc]

One way to confirm if it is retained silver is to hold the emulsion side of the negative facing you. Then tilt the negative back and forth and if you can see what appears to be a faint positive image fading in and out, as your tilt, then it would be retained silver due to not enough bleaching.

The solution is to rebleach, re-fix and wash.

 

[Alan Edward Klein]

The new one looks OK.

 

[Joel_L]

LOL, ya, this roll was just a quick walk through the house snapping what ever was in front of me. I hadn't used my EOS-3 and flash in a while so I gave them both a workout.

No green lights anywhere, I'm still loading my reels in a bag, my "darkroom" is still just my basement at night. There's a very very smal chance my watch was on, but I really tend to notice than when sticking my hands though. Also the film is very consistent in that tint which I would not expect if my watch were to be on.

Doing fresh beach and fix on a strip did not clear anything up.

Tilting negative, interesting, I tried it and did not notice anything.

Hopefully just does not happen again.

Thanks for the thoughts and tips, I think I will just write it off as an oops and move on.

 

[PaulYW]

Is it both the same daylight film or did you process tungsten after first one?