RE: Retro-Invention: cyanotype rex, chrysotype rex and platinum

See my inline comments below:

-----Original Message-----
From: TERRYAKING@aol.com [mailto:TERRYAKING@aol.com]
Sent: 06 Şubat 2006 Pazartesi 15:15
To: TERRYAKING@aol.com; alt-photo-process-L@usask.ca
Subject: Re: Retro-Invention: cyanotype rex, chrysotype rex and platinum

> ... You can get a full range of tones from negatives of different
> density ranges, for eaxample either from a neg intended
> for platinum or one intended for cyanotype ...

That's a very interesting and nice feature - if it can be done by adding
a contrast agent into the coating solution (just like pt/pd and
kallitype). But if it's done by preparing sensitizers of different
contrast I'd say that would be a little bit cumbersome. This feature
will be appreciated mostly by in-camera negative users, digital negative
users can calibrate their negative according to the process and the
coating mix they prefer to use...

> ... The process will certainly give better contrast and gradation
> that the two ' new cyanotypes' you attached ...

I'd like to see some evidence... Furthermore, I can't see how it can do
that (giving better gradation) since both of my images exhibit all the
256 tones probable within dmax and paper white. Have you checked the
histograms in Photoshop?

Regards,
Loris.
Received on Mon Feb 6 07:36:58 2006