>>4466401
>Tell me about that reddit argon thing please.
https://www.reddit.com/r/AnalogCommunity/comments/nma0wl
that's the main thread I used as a reference but ironically that one doesn't talk about the argon, not sure where I got that
but basically the idea is you mix up one of the larger Kodak kits, split it into working and replenishment batches
the working batch is development volume and I store than in chem bottles topped with argon (they don't have to be filled with argon, it's heaver than air and acts as a surface seal)
the replenishment volume is most of the batch, that goes into Amazon special wine bags with more argon
the wine bags empty from the bottom so they stay protected even when you decant for replenishment
some things have changed since the original post was written
for one, after a period of being unavailable, CineStill's parent company got the license for Kodak C-41 kits, and they're now available in "smaller" 5L and 2.5L kits, instead of 10+L batches of chemicals you had to buy individually along with separate replenishment mixes
(so yes whether you buy the simplified CineStill or full Kodak kit, it's the same company)
second is there is now official published replenishment instructions for the kit, full details on the product site but basically 40mL/roll
long story short, for a bit of up-front investment (bigger kit, bags, kitchen argon can) and careful handling, you can have 50+ rolls' worth of C-41 chemistry with practically unlimited shelf life