RE: Cyanotypes

Hi Colin, have you looked at the instructions on alternative
photography.com? Lots os useful information out there on the web. Here in
NZ, the exposure time for cyanotype in midday sun is about 45mins-hr in
summer. As with any printing-out process, it's a good idea to have a frame
of some dsrt so you can track the progress of your exposure without losing
negative registration. However, using just a piece of glass and carefully
watching the shadows for reversal/bronzing (indicating correct exposure), my
(beginning) students make pretty reasonable prints.

Kate

-----Original Message-----
From: owner-pinhole-discussion@spitbite.org
[mailto:owner-pinhole-discussion@spitbite.org] On Behalf Of Colin Talcroft
Sent: Saturday, 4 November 2006 4:08 p.m.
To: pinhole-discussion@spitbite.org
Subject: Re: [pinhole-discussion] Cyanotypes

I was wondering more how to keep it from going too
dark, so the highlights don't turn blue. And, what are
sources for cyanotype papers? Do you expose directly,
or with negatives? Does the paper respond to enlarger
light or only sunlight?

Colin
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