Re: Digital negative curve update

Albert Strauss (a.strauss@worldnet.att.net)
Thu, 1 Aug 1996 00:01:43 +0000

At 02:30 PM 7/31/96 +0000, you wrote:
>Yesterday I reported some possible Photoshop compensation curves for
>platinum and palladium. The data for those curves was gleaned from a
>digital step tablet made by Evercolor which seems to print quite well on
>Crane's Platinotype paper sensitized with palladium and developed in
>ammonium citrate. It also seemed to be reasonably close to the mark (a
>little fine tuning required) for a 1:7 mix of Pt/Pd, double-coated,
>printed on Arches Platine, and developed in potassium oxalate #2 (1 drop
>of sodium dichromate solution add per 200ml of developer).
>
Have you tried the correction curves that Dan Burkholder provides with his
book - "Making Digital Negatives"?

Al