Caffenol question

[Alan9940]

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]

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]

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]

Hi John,

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

 

[wsetser]

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

 

[removed account4]

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]

Thank you all for the input.

 

[nosmok]

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]

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.