[Alt-photo] Ageing of New Cyanotype
mike at mikeware.co.uk
Wed Mar 28 09:21:08 UTC 2018
I don’t think I’ve anything new to add to what I’ve already written about the sensitizer stability in my Cyanomicon, which can be freely downloaded here:
I’m not responsible for PF’s quality control - or their instructions. If the dichromate is omitted the solution will begin decomposing within six months or so; with dichromate the shelf-life is several years.
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