RE: spectral sensitivity of platinum/palladium and cyanotype coatings.

Interesting. I can print Ziatype emulsions - incorporating considerable
amnt. of contrast lowering NaOW additive - which exhibit 30 steps with a
31-step tablet (read as: emulsion needs log 3.00 density range!) using the
PDN system and 1290 printer (1280 equivalent in Europe) easily. Of course I
have to use the stongest color G255-B0 with this emulsion, but I can
definitely print with good dmax and specular highlights that are paper
white.

-----Original Message-----
From: wcharmon@wt.net [mailto:wcharmon@wt.net]
Sent: 21 Şubat 2006 Salı 18:10
To: alt-photo-process-l@usask.ca
Subject: Re: spectral sensitivity of platinum/palladium and cyanotype
coatings.

...I have no difficulty at all making negatives with enough density range to
print Van Dyke, which is something I found difficult to do using the
straight PDN approach, especially on the 1280...
Received on Tue Feb 21 11:32:24 2006