My Very Own Developer Recipes
Slow CaffenolThis is a recipe I derived from some others... It is not really strong, so development time is usually around 18min.
Measures are in spoons (the kitchen measures that is, not your random spoons!).
I mix this in 2 different vessels with about half the liquid each!
- 250ml water (Jobo 1510) @ tap temperature
- 2 teaspoons of soda (vessel 1)
- 1/2 teaspoon of ascorbic acid (vessel 1)
- 5/2 rounded teaspoons of coffee crystals (vessel 2)
- 1/4 teaspoon of iodized salt (vessel 2 - for B&W film only)
For developing, I use the recommended Caffenol method (constant agitation during the first half 30s, 3 slow shakes, or 10 sec, agitation during the begin of every further minute).
NOTE: For C41 x-processing, leave out the iodized salt!
ChardonnolChardonnay wine seems to contain the highest concentration of caffeic-acid, what wines are concerned. This wine forms the basis of a very simple developer.
- 250ml cheap Chardonnay
- 3/8 teaspoons ascorbic acid => measured pH 4
- 1 teaspoon washing soda => measure pH > 11 (maybe 3/4 tea spoons washing soda will be better)
Pure CaffenolThis is the most simple recipe I tried and believe to be a pretty good developer, even suitable for C41 negative film. Next to being simple, it is the cheapest possible.
I use this recipe for a 17min development.
Again, I use 2 vessels to dissolve the solids.
- 250ml water
- 2 tsp of soda (vessel 1)
- 6 tsp of coffee crystals (vessel 2)
For developing, I use the recommended Caffenol method (constant agitation during the first minute, 3 slow shakes, or 10 sec, agitation during the begin of every further minute).
Caffenol + COne tablespoon of coffee crystals, from the recipe above, is replaced by half a table spoon of ascorbic acid.
The developing time for this mix is about 15min.
- 250ml water
- 2 tsp soda (vessel 1)
- 1/2 tsp ascorbic acid (vessel 1)
- 5 tsp coffee crystals (vessel 2)
Agitation as above.
Caffenol for PaperI am using take-away trays, which only need 125ml to cover a 9x12 negative.
The developer recipe I am using is
- 125ml water
- 3 tsp of coffee crystals
- 3/2 tsp of soda
- 3/4 tsp of ascorbic acid