RE: Why multiple exposure (was Re: (Gum) Tonal scale)

I posted this yesterday but somehow it didn't return to me (also it
didn't show up in the list archives). So I'll post it again. Sorry if
you get this for the second time.

-----Original Message-----
From: Loris Medici [mailto:loris_medici@mynet.com]
Sent: 05 Aralık 2005 Pazartesi 11:25
To: 'alt-photo-process-l@sask.usask.ca'
Subject: RE: Why multiple exposure (was Re: (Gum) Tonal scale)

Hi Katherine,

The standard emulsion in my mind was pigment specific: I mean
pigment/gum/dichromate ratios different for each pigment. Thanks for the
warning anyway.

BTW, also thanks for the comments on my "strategy". I guess both
Christina and you saved me from useless struggle.

Regards,
Loris.

-----Original Message-----
From: Katharine Thayer [mailto:kthayer@pacifier.com]
Sent: 02 Aralık 2005 Cuma 23:47
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Why multiple exposure (was Re: (Gum) Tonal scale)

On Dec 1, 2005, at 11:46 AM, Loris Medici wrote:

> I have to mix a standard emulsion (same amnt. Of pigment / gum and
> dichromate) in order to calibrate with the PDN system. Everything has
> to be as constant as possible. I just added gum to the tube pigment
> until the saturation and density seemed right to me (not too dark and
> opaque, not too
> light).

...
But if "standard emulsion" means that for every pigment you use, you
use the same amount of pigment, gum and dichromate, then I'd say that's
not such a good idea. So I hope it's the first and not the second. I
just need that clarification.
Received on Tue Dec 6 19:33:19 2005