[alt-photo] Re: argyrotype

[Loris Medici]

Most probably it was related to humidity indeed; I wasn't
rehumidifying the paper back then. I was timing the drying phase
only... Then I thought about adding glycerin into the coating mix (but
that was for pop palladium) and saw that it works like a charm for
maintaining a good amnt. of moisture in the paper. I remember to
mention this in the list. Mike says it works for Argyrotype too (2 - 6
drops per ml of coating solution), plus, it gives you different /
interesting color options. Try that if you like.

Regards,
Loris.


2010/2/18 Christina Anderson <zphoto at montana.net>:
> ...
> The color is related to humidity says Mike, with the cooler tones being lower humidity.  It is grey/brown, not the luscious
> chocolate brown I prefer.  But Montana is really...in some respects....a PITA for alt with its traditionally semi-arid humidity
> levels.  I can humidify a room with a small humidifier at home, which I do before I do platinum, but there is no way I can
> humidify the facilities in my program because they are HUGE.  Two 20 enlarger darkrooms, one 18 individual darkroom
> area, and a large finishing room connecting all rooms.  So I have to work with what I have.  In the individual darkrooms
> they can place large trays of water and that helps greatly.