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Hmm, then they certainly hid the documents that advise pre-soak for C-41 (or E-6) very well.
Publicly accessible ones specifically advise (in bold font) AGAINST pre-soak:
Do not immerse the film in a warm water pre-soak. Warm-up step is done by warming the outside of the tube with hot air or in a tempered water bath.
Can you point me to the Kodak resource that supports the C-41 pre-soak claim? Thanks!
It is definitely recomended in the various C-41 developing kit instructions...
It is definitely recomended in the various C-41 developing kit instructions...
That's hardly "pre-soak is mandatory for colour film". No one relevant in C-41 processing business ever said pre-soak is mandatory, AFAIK. Every source points to the fact that the process was designed not to include pre-soak.
Yes, some of us might think that pre-soak might help somewhat, but that's more because we run non-controlled process on subpar equipment and not because we all missed the pre-soak step in official C-41/CN-16/E-6 process manuals.
Which might not have had anything to do with presoak anyway. I never do a presoak with c41, shoot me.why a guy has had streakings
This is how wars start.
I am a presoaking opponent for BW films, for all the obvious reasons.
Tangential, but check out ovorotation regarding chicken eggs. The egg is formed and travels through the hen pointy side down, then the egg rotates so the blunt end is the end that emerges first. Kinda reminds me of an Apollo command module.Big end of the egg or small end?
(if you don't understand this reference then check out Gulliver's Travels)
You beat me to it and said what I wanted to say.This is how wars start.
Tangential, but check out ovorotation regarding chicken eggs. The egg is formed and travels through the hen pointy side down, then the egg rotates so the blunt end is the end that emerges first. Kinda reminds me of an Apollo command module.
and my reply refers to Gullivers Travels in Lilliput and the reason for going to war was which end of the egg should be opened. (it was supposed to be a joke)This is how wars start.
Hello all, sorry to barge into this thread like this. I've researching and posting about an issue i have been facing with my C41 developing and came across this discussion. The images which @reelquickfilmlab posted are certainly relevant to my scans and negatives.
I use Jobo CPE2 with a 2520 tank for developing C41 films with Kodak Flexicolor kit. I don't perform a stop bath in between Developer and Bleach, but have been facing random streaks across the frames, especially in the highlights. I've been suspecting bad film emulsion, bad chemsitry, contaminated chemsitry, unclean tank or spools but couldn't conclude anything. Also, such issues and their solutions seemed to very rare on the internet forums. Until i jumped on this discussion. I'll post the images here and maybe you guys can share some insights regarding the same.
I think I've been too casual about pouring in developer and other baths in the tank and then mounting it on the jobo. Maybe that's the root cause of my issue as well. Please help!
No, i have the standard CPE2 Plus without the lift which makes pouring part easierDo you have one of these? It helps make pouring more consistent.
https://www.catlabs.info/product/new-style-lift
After developing some more 120 film the streaking is gone and I think it's most likely due to the faster pouring times. Thank you @koraks I did however try pre-soaking the film and am not sure if that played a part as well. But thank you all for the help. I now need to figure out what ratio to mix the stabilizer since the one Cinestill recommends is yielding spots on the negative.
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