[pure-silver] Re: New color head "discoveries"
- From: "Dave Valvo" <dvalvo@xxxxxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Wed, 12 Jan 2005 23:20:41 -0800
Don, magenta filters fade and do so quickly if you don't have a heat
absorber in the light path before the filters. If your filter fades you may
not be able to get high contrast with any paper.
Also if you have a white diffusing box.... it is possible over the years the
reflective surface inside can fade and go yellow.. So if you have extremely
yellow light coming out of the diffusing box filtered with even good magenta
it will be hard to get high contrast. Suggest you check those out.
Dave
----- Original Message -----
From: "Don Feinberg" <ducque@xxxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Wednesday, January 12, 2005 8:10 PM
Subject: [pure-silver] Re: New color head "discoveries"
> FWIW, I have found that Forte will not go above "contrast 3" no matter
what
> you do (well, whatever I do, anyway!). You can use VC filters -- use as
> much M as you want; use the Ilford or Kodak or Oriental discrete filters
for
> #5. It doesn't matter. You get contrast 3. Things ramp up pretty pretty
> predictably to #3, but all of a sudden additional M doesn't seem to do
very
> much!
>
> This behavior is consistent with some notes I exchanged with some other
> people on this subject. I do not understand the behavior, but the paper
is
> consistent in this respect.
>
> That said, I have found the 11x14 and 16x20 varieties to behave somewhat
> differently from one another. I assume that has to do with emulsion
> batches.
>
> I have been able to get much greater contrast using lith developers.
Forte
> clearly doesn't "lith" the way Tim Rudman would describe it, but the
results
> are pleasing, for the right composition, just the same.
>
> I have not been in love with the results I got from trials of Forte with
> Ansco 130. I have been much happier using regular MQ-type developers,
e.g.
> Ansco 125, or with Formulary BW65 1::1::6.
>
> And, btw, forget the Thomas safelight. It's just not safe with VC paper.
I
> use four oldie-but-goodie el-cheapo lights fitted with 7.5 watt bulbs and
> Kodak 0C filters, mounted high up on the walls. This works well.
>
> Don Feinberg
> ducque@xxxxxxxxxxxxxx
>
> > Well, my Omega Chromega Dichro DII came in last weekend and I've begun
> > testing. with VC papers. First VC I've printed in 20 years.
> >
> > I've been using metol glycine based Ansco130 paper developer (modified
by
> AA
> > and without hydroquinone).That's where I started. Problem is, the
hardest
> > contrast I was able to get with 0Y/170M was about 0.8 on Forte Polygrade
V
> > (boy is that paper really blue!!) and about 0.6 on Kodak Polymax Fine
Art.
> > The softest contrast comes in about right at 1.8 (polymax) and 1.4
> > (polygrade).
> >
> > Glycine is a much softer developer.. is that why I'm able to get no more
> > than ISO ~3.5 on the VC papers... do the emulsions require stronger
> > developers for satisfactory development? I tested my graded papers under
> > white light exposure, developed them in A130, and acquired the right
> scale.
> > I developed all the test prints at 6x factorial so I would think that
> would
> > be sufficient, and I was able to get max black.
> >
> > I ran an Ansco 120 test last night. The test prints look better, but
> haven't
> > read them yet.
> >
> > Also, I learned that both of these paper are very sensitive to the
Thomas
> > safelite... I ran a screening test and at 5 minutes exposure I got fog
> that
> > appeared as Zone VI reflectance.. So, I move the safelight, unplug it,
or
> > change papers to one less sensitive, and retest. Such is life.
> >
> > J.R. Stewart
> > Leesburg, VA
> >
> >
> >
>
============================================================================
> =================================
> > To unsubscribe from this list, go to www.freelists.org and logon to your
> account (the same e-mail address and password you set-up when you
> subscribed,) and unsubscribe from there.
>
>
============================================================================
=================================
> To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you
subscribed,) and unsubscribe from there.
>
=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your
account (the same e-mail address and password you set-up when you subscribed,)
and unsubscribe from there.
Other related posts:
