RE: Lagrange cyanotype
Have to correct a mistake I've made below: The iron salt used in -Rex is not Ammonium Iron(III) Oxalate as in Lagrange formula -> so it's not essentially Cyanotype-Rex... Nevertheless, results seem to be similar according to Stane's description ;) Perhaps that's the fact which caused the confusion in my part. Sorry for the inconvenience. Regards, Loris. -----Original Message----- From: Loris Medici [mailto:mail@loris.medici.name] Sent: Friday, August 10, 2007 1:47 PM To: alt-photo-process-l@usask.ca Subject: RE: Lagrange cyanotype ... This is essentially what our TK calls "Cyanotype-Rex" - except for slightly different solution strengths. I had bad luck with this type of formula: strange tonal response (flat and grainy midtones, stair-like H&D curve) + blue stained highlights (maybe you'll find staining is less by separating solutions). ...
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