From: David Harris (david.j.harris2@ntlworld.com)
Date: 03/31/03-06:52:09 AM Z
I suggest you include a step wedge, it'll teach you a lot about exposure and
tonal response. Its helpful to mark the lightest step which shows detail
before and after processing (washing in this case).
----- Original Message -----
From: "Rauch, Shelley" <rauch@yorkcounty.gov>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Monday, March 31, 2003 1:38 PM
Subject: RE: emergency question regarding cyanotype
> Thanks Chris.
>
> I kept my images outside for 1 hour, 45 minutes. I thought that when the
paper approached the slate grey-blue sort of colour, it would be done. My
teacher had also mentioned something about placing a coin over the emulsion
to see how your highlights were coming out. I wasn't sure really what I was
looking for in this, but thought it was okay.
>
> Unfortunately, when I got everything back upstairs, and rinsed off, you
could barely see any image at all. I left them hanging to dry for about 3
hours. When I returned home and checked on them, the images are barely
discernible. On one in particular, you can barely see anything. :(
>
> So, I'll be buying more chemicals this weekend, and will hopefully have
better luck. But I am curious as to what exactly tells you its time to take
the image inside. What are you looking for in a highlight, exactly?
>
> >>>>>I can expose under UV easily to 30 or 40min, and under grey
conditions, an
> >>>>>hour outside is not unreasonable. Depends on your neg.
> >>>>>Chris
>
>
>
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