Wednesday, March 6, 2013

Caffenol LC+C (Metric) and Adox CMS 20

I am working myself up to processing some of my precious CMS 20 in Caffenol.  From what research I have been able to do I have found the following starting point.  It is this recipe that came from richard314159 at flickr.  
Recipe:
      In 300ml water at 20 degrees C dissolve
18g washing soda (sodium carbonate decahydate)
0.4g sodium sulphite (optional)
shake and leave to settle. Then dissolve in this
5.5g instant coffee granules
0.4g ascorbic acid powder


My adaptation is to achieve proper solution at 650ml working volume for my Patterson tank and 120 roll film.,this is my table:



richard314159 processed a roll of ATP in the 300ml version of this formula for 20 minutes.  Though he did mention that 18 minutes may have been a better time.

I need to look at the records for last roll of CMS that I shot to see what ISO i chose to use.  I seem to remember 12, but i will certainly check.  I don't want to think about processing time until I have the exposure details worked out.

The issue that I am having about this is I am slightly anxious about blowing a roll of rare film for an experiment.  Considering this I am going to be very careful about subject, shot setup, exposure, and processing.

This came from my last shoot with the Bronica and CMS 20:

I will add more later.

No comments:

Post a Comment