From: benedict johnson (bennn@callnetuk.com)
Date: 10/17/01-11:01:35 AM Z
I was wondering if anyone could help with formulas for cyanotypes - I'm
looking to reduce the exposure time of the formula i'm currently using
about 40 minutes under very average british daylight) and havent been able
to find other formulas with an indication of exposures. So to avoid tons of
experimentation does anyone have an idea of which might be the quicker
directions to start looking? This would be a great timesaver.
the formula I'm currently using is:
25g ferric ammonium citrate in 4 oz h2o
to 17.5g potassium Ferricyanide in 4 oz h20
many thanks
benedict johnson
This archive was generated by hypermail 2b30 : 11/02/01-08:55:27 AM Z CST