Re: Cyanotype, please tell me when your done?
Jacek, put about 5-10ml (per 1000ml) 3% hydrogen peroxide into the last clearing bath to instantly oxidize the print.... You'll have the end result as soon as the print is completely dry. Of course there's also Cyanotype fading due light exposure (dmax fluctuations) that should be taken into account but that's a whole other matter which I really don't want to get into... Regards, Loris. 2009/8/21 Jacek Gonsalves <jacek@jagnight.com>: > Hello all, > > I've printed some cyanotypes, and developed them in a tray of water for 15 > to 20 minutes. I do not change the water, I just agitate the tray or move > the print face down in the water. > I let them dry for a complete day. > > I measure the DMAX results with a densitometer on day 1 of completion, fine. > > After a few more days that same exact DMAX has increased? > I suspect with oxidation? > Also the weather here in Australia is wet and humid, so the prints even > after a day have not been fully bone dry. > > What do you do when developing prints? How long do you wait to fully see > that your print has reached a dark dmax? > Happy printing... > Jacek > >
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