RE: Ammonium Dichromate

I take my saturated solution of Amm. Di. and dilute it 1:1 with
distillled water. I find this prints with better contrast than the
saturated amm. Di., as was discussed on the list several months ago. As
my lab is at 20 deg C constantly, I think this is as close to perfect as
I can get.

As for gum, I use a 1:1 (by volume) solution of lithographers gum and
distilled water.

 I find this to be satisfactory FOR ME.

I still have very little EXACT repeatability and do I care? NO!!!!

Trevor, this is a great print for a first try! In fact, it's a great
print anyway. Did you scan it as a greyscale tho? I'd like to see the
colour.

Cheers
Kate

-----Original Message-----
From: Judy Seigel [mailto:jseigel@panix.com]
Sent: Thursday, 30 December 2004 4:34 p.m.
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Ammonium Dichromate

On Thu, 30 Dec 2004, T. E. Andersen wrote:
> Ps. You may still be right in saying that dichromate concentrations
> does not
> matter. I have not taken the time to test the consequences of
variability,
> since it is so easy just using a slightly lower concentration than
> saturation.
>

Let me put it this way: my own personal feeling is that if you're gum
printing for reproduceability rather than discovery you're missing half
the joy and might as well print digitally. Why make the same gum print
twice? Life is too short and there are more prints out there waiting to
happen than we can do in several lifetimes.

In fact TRYING to get the same gum print may lead to miracles...

Judy

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