U of S | Mailing List Archive | alt-photo-process-l | RE: Cyanotype Sensitivity Curve?

RE: Cyanotype Sensitivity Curve?



If I'm not mistaking, Mike Ware's book Cyanotype contains that
information... I don't have the book in front of me right now, maybe
someone can help you by suggesting other sensivity peaks and their
relative power compared to the max. sensitivity point - which, IIRC is
around 365nm... BTW, again IIRC, there wasn't any "practically useful"
wavelength for exposing Cyanotype other than around 350 - 360nm...

Regards,
Loris.

-----Original Message-----
From: Travis Wiens [mailto:tkw954@mail.usask.ca] 
Sent: Thursday, November 01, 2007 9:53 PM
To: alt-photo-process-l@usask.ca
Subject: Cyanotype Sensitivity Curve?


Hi,
Can anyone point me to a source for the sensitivity curve for
cyanotypes? I.e. exposure time (or something related) vs wavelength.
I'm interested in using a light source outside the UV range and would
like an order-of-magnitude estimate of the time required.

Thanks a lot,
Travis