Re: New Cyanotype

From: Tom Ferguson ^lt;[email protected]>
Date: 05/15/04-08:32:59 AM Z
Message-id: <>

You can get the formula here (from it's inventor):

You can buy pre mixed solution here (some of the chemicals are hard to

As to the needed negative density, it will vary with the paper and
light source you use. More exposure (perhaps 1/2 stop beyond silver)
and more development (perhaps 50% more than silver) is a "starting

On Saturday, May 15, 2004, at 05:10 AM, Thom Mitchell wrote:

> I have a few simple questions. Where can you find the formula for the
> new
> cyanotype? I'll be making in camera negs for the process and I do not
> have a
> densitometer, so how thick or thin should ones negs be to make a decent
> image on cyanotype. Normal exposure and processing? 1 stop
> over-exposed? 2
> stops over-exposed? 1 stop under-exposed? etc. I ask this merely to
> ascertain a starting point from which to begin my own testing and
> possibly
> shorten the cycle of frustration. Thanks, Thom

Tom Ferguson
Received on Sat May 15 08:33:49 2004

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