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Re: [tech-3d] blueprint
- From: Brian Reynolds <reynolds@xxxxxxxxx>
- Subject: Re: [tech-3d] blueprint
- Date: Tue, 24 Oct 2000 13:23:03 -0400
Zyla Nuite wrote:
> does anyone know the iso # of blueprint paper?
>
Blueprint paper (aka cyanotype) needs to be exposed to ultraviolet
light. I doubt it has an ISO rating like silver gelatin paper (which
is not the same as the ISO rating of film).
On the pinhole mailing list people often rate silver gelatin paper as
if it were ISO 4-12 film.
You might want to check with the alt-photo-process mailing list
archives at <URL:http://members.nbci.com/altphotoprc/> or the
Alternative Photographic Process FAQ at
<URL:http://duke.usask.ca/~holtsg/photo/faq.html>.
--
Brian Reynolds | "Dee Dee! Don't touch that button!"
reynolds@xxxxxxxxx | "Oooh!"
http://www.panix.com/~reynolds | -- Dexter and Dee Dee
NAR# 54438 | "Dexter's Laboratory"
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