Magic Coffee...enough Ingredients to develop ten rolls of 120 film..
The ingredients required for making enough Caffenol-C for the development of ten 120 films
The developer mixture described below seems to work with both black and white films (gives, obviously, black and white negs) and for colour films films that normally require a C-41 process (which results in a copper-toned negative. Note that Caffenol-C does not work for old colour films that require a C-22 process...
© Dirk HR Spennemann 2009, All Rights Reserved
========================================
CAFFENOL-C
Standard receipe, taken from various sources on the net.
INGREDIENTS:
Instant Coffee (not decaf)
Washing Soda (Sodium carbonate, Na2CO3)
Ascorbic Acid Powder (Vitamin C)
Dishwashing liquid
FORMULA
12oz water
3 1/2 teaspoons washing soda (Sodium carbonate, Na2CO3)
1/2 teaspoon ascorbic acid
PREMIXED INGREDIENTS
Premix solutions can be set up. But do not premix the whole developer as it (reputedly) has a short shelf-life. For ease, create premix solutions of required strength for each of three developer ingredients so that in the end all that needs to be done is to mix equal amounts of each of the three premixes
Strength for premixes:
Instant Coffee: 10 teaspoons / 12 oz
Washing Soda: 7 teaspoons / 12 oz
Ascorbic acid:1 teaspoons / 12 oz
when ready to develop, mix required quantity in three even parts.
Small Patterson Tank
120mm roll film requires 550 ml (20 oz)--ie 3 x 7 oz for the development of a roll of 120 film (which gives 21 oz, but makes life easier).
SET UP for 120 roll:
Premix 21 oz developer (see above)
Premix 20 oz fixer
Premix 20 oz final wash (with one drop of dishwashing liquid)
DEVELOPING
Developing 16 mins (initially worked with 12 min, whch proved to short, then moved to 16 minutes)
Continuous agitation first minute
thereafter agitate 3 x / minute
Rising
3 rinse baths @ 6 x agitation each (first bath can contain some vinegar to act as stop bath)
Fixing
5 mins @ 3 agitation /minute
Final Rinse
Fill, agitate 3x
Refill, agitate 6x
Refill, agitate 12x
Refill with soapy water, agitate slowly 24x
Dry
Magic Coffee...enough Ingredients to develop ten rolls of 120 film..
The ingredients required for making enough Caffenol-C for the development of ten 120 films
The developer mixture described below seems to work with both black and white films (gives, obviously, black and white negs) and for colour films films that normally require a C-41 process (which results in a copper-toned negative. Note that Caffenol-C does not work for old colour films that require a C-22 process...
© Dirk HR Spennemann 2009, All Rights Reserved
========================================
CAFFENOL-C
Standard receipe, taken from various sources on the net.
INGREDIENTS:
Instant Coffee (not decaf)
Washing Soda (Sodium carbonate, Na2CO3)
Ascorbic Acid Powder (Vitamin C)
Dishwashing liquid
FORMULA
12oz water
3 1/2 teaspoons washing soda (Sodium carbonate, Na2CO3)
1/2 teaspoon ascorbic acid
PREMIXED INGREDIENTS
Premix solutions can be set up. But do not premix the whole developer as it (reputedly) has a short shelf-life. For ease, create premix solutions of required strength for each of three developer ingredients so that in the end all that needs to be done is to mix equal amounts of each of the three premixes
Strength for premixes:
Instant Coffee: 10 teaspoons / 12 oz
Washing Soda: 7 teaspoons / 12 oz
Ascorbic acid:1 teaspoons / 12 oz
when ready to develop, mix required quantity in three even parts.
Small Patterson Tank
120mm roll film requires 550 ml (20 oz)--ie 3 x 7 oz for the development of a roll of 120 film (which gives 21 oz, but makes life easier).
SET UP for 120 roll:
Premix 21 oz developer (see above)
Premix 20 oz fixer
Premix 20 oz final wash (with one drop of dishwashing liquid)
DEVELOPING
Developing 16 mins (initially worked with 12 min, whch proved to short, then moved to 16 minutes)
Continuous agitation first minute
thereafter agitate 3 x / minute
Rising
3 rinse baths @ 6 x agitation each (first bath can contain some vinegar to act as stop bath)
Fixing
5 mins @ 3 agitation /minute
Final Rinse
Fill, agitate 3x
Refill, agitate 6x
Refill, agitate 12x
Refill with soapy water, agitate slowly 24x
Dry