U of S | Mailing List Archive | alt-photo-process-l | Re: tri-color gum at last

Re: tri-color gum at last

Hi Keith,

My current pigment choice looks promising in getting neutral and dark
blacks. Maybe it's too early to decide (because I still haven't manage to
balance the pigments), but the ruined prints have nice deep "neutral
looking" blacks (not too brownish or too purplish) with the pigments

Cyan   : PB15:3 - Phtalocyanine Blue
Magenta: PV19 - Quinacridone Red
Yellow : PY151 - Benzimidazolone
(All semi-transparent, semi-staining pigments)

Have you tested these together before? If yes, I'd like to hear your


24 Eylül 2008, Çarşamba, 6:44 pm tarihinde, Keith Gerling yazmış:
> Even more impressive then.  That is a very neutral and dark black.
> I've resorted to using cyanotype for the very reason that I did not
> think I could get blacks like that with 3 primary color gum coats.  I
> better get back to work on that!
> Can I pester you some more?  What blues did you use?  What kind of negs?
> On Wed, Sep 24, 2008 at 9:16 AM, henk thijs <henk.thijs@hetnet.nl> wrote:
>> Hi Keith,
>> No , just the standard:
>> Yellow (a primary), magenta (magenta from the tube with a bit Pirylene
>> maron) and a mix of blue 's ...
>> Cheers,
>> Henk
>> On 24 sep 2008, at 15:24, Keith Gerling wrote:
>>> wow - isn't it great when you can obtain such nice and subtle skin
>>> tones?  Very nice.
>>> Gum over Cyanotype?