Manufacturer's shelf-life times tend to be very conservative but once your developer passes its shelf-life time then it might be worth "wasting" developer by doing a clip test( cut a few frames from the film ) to check its strength before devloping the rest of the roll.įrankly from a film processing economics aspect and given your film usage it might be cheaper and better to use a reliable mini-lab. It would seem that they last for quite a long time. You might be better with the Digibase C41 minikits if there are available where you are. So once you make up the 1L of liquid then divide it into bottles which hold enough liquid for one film only and try and fill the bottles completely so there is little or no air present.If you can't fill the bottles then use Protectan gas to prevent air getting to the liquidĦ-8 months may be longer than the developer will survive but as long as the quality isn't important then it will be interesting to see how it goes. As powder it will last a long time, maybe indefinitely, but unfortunately you cannot divide the powder to do say 1 film at a time. I'd say I plan on using this for 6-8 months. I just don't want my chemistry to drop dead fast. So what's the best and cheapest way to store the chems so that they are airtight? It's not absolutely critical for me to get the perfect results like you would from the lab using flexicolour, so I don't care if the chemistry slowly expires. Then maybe after a dozen rolls, mix a fresh batch. I'd say I'll be doing 3-4 rolls a month to start things off. How would I mix lesser quantities? Just use less powder/water?
TETENAL C 41 PRESS KIT HOW TO
Should I mix ALL the chemistry or just a little? The tetenal instructions tell you how to mix the whole 1L but I don't think i want to do that. I'm willing to tolerate colour shifting and all that. I know C-41 chemistry goes bad fast, though I've seen people extend chemistry life with tolerable results. I'm only comfortable doing 1 roll of B/W at a time right now, so the same goes for colour.
Probably will order the Tetenal 1L Press kit for now and see how that works out. I read through many threads here and was inspired to DIY my own colour film. So being the curious child I am, I wanted to find out how to do it myself. My school (OCAD) doesn't seem to have a place to develop C-41 on our own, just B/W film. I apologize in advance if some of this stuff has been posted previously.
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