Caffenol question

Alan9940 · May 16, 2018

Just started working with Caffenol-C-L and doing stand development of 4x5 sheets of film. My tank can hold up to 10 sheets of film, but, so far, I've been doing only single sheets because I'm testing things out. Anybody have any idea how many sheets can be processed simultaneously in 1L of Caffenol-C-L?

Thanks!

pdeeh · May 16, 2018

This is one you'll have to work out for yourself I'm afraid.
Developer capacity is derived from lab tests by manufacturers ... And as everybody's caffenol will be different (different coffee, different vitamin c sources, even different formulae with the same names) you're the manufacturer

Watch out for bromide drag if you're doing stand dev of sheet film tho

removed account4 · May 16, 2018

hi alan
when i "stand" its more like "semi stand" cause i agitate a little before and after ..
and i spike it with a little go-go-juice so my results would not help you .. that said
i don't usually do more than 2 runs wtih a FR tank's worth of java .. and the sheets
usually chit chat in the drunk tank for 30-35mins ..

good luck !
john

Alan9940 · May 16, 2018

Hi John,

Thanks for the reply. OK, how many sheets per run in the FR tank?

wsetser · May 16, 2018

I routinely process 6 sheets in 1 liter in a Combi Plan tank.

removed account4 · May 16, 2018

hi alan
i can never fill the whole tank with film cause even with the guide i temd to screw up,
ot ends up being about 10 maybe 12 sheets ...
i pre-wet first, too ...

Alan9940 · May 16, 2018

Thank you all for the input.

nosmok · May 27, 2018

Hope this is not too late but I have processed 12 sheets at a time using Caffenol CH and a Nikor pack-film tank and reel. That set-up takes 1.5 liters to fill though, so that works out to about 8 sheets per liter. Be careful when loading, it goes without saying-- I have never had a developer issue but have misloaded sheets here and there.

Alan9940 · May 27, 2018

nosmok said:
Hope this is not too late but I have processed 12 sheets at a time using Caffenol CH and a Nikor pack-film tank and reel. That set-up takes 1.5 liters to fill though, so that works out to about 8 sheets per liter. Be careful when loading, it goes without saying-- I have never had a developer issue but have misloaded sheets here and there.

Thanks for the info. So far, the most I've done at one time is 4 sheets in 1L of Caffenol-C-L doing stand development. My tank is a Nikkor-style 4x5 tank which holds a total of 10 sheets. Haven't tried a full load, yet, but I'll certainly keep your 8 per liter suggestion in mind.

Caffenol question

Privacy & Transparency

Privacy & Transparency