[pure-silver] Re: Scanning Pyro ( RE: Re: D-Max with pyro)

Thank you, Eric. Since my original post, I've had a
chance to scan PMK developed negatives both ways and
my observations support your statement. RGB scanning
with channels to convert provides a much richer
canvas.
Thanks again for the response,
Bob

--- Eric Neilsen Photography
<eric@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> Bob, Many photogs that I know will scan in RGB and
> convert in PS; some use
> the channels to convert. Pyro and standard B&W
> densitometers don't go so
> well together, but color densitometers work OK.
> 
>  
> 
> Eric Neilsen Photography
> 4101 Commerce Street, Suite 9
> Dallas, TX 75226
> 214-827-8301
> http://ericneilsenphotography.com
> 
> 
> > -----Original Message-----
> > From: pure-silver-bounce@xxxxxxxxxxxxx
> [mailto:pure-silver-
> > bounce@xxxxxxxxxxxxx] On Behalf Of Bob Adler
> > Sent: Monday, December 12, 2005 11:24 AM
> > To: pure-silver@xxxxxxxxxxxxx
> > Subject: [pure-silver] Re: D-Max with pyro
> > 
> > Dear All,
> > 
> > I have just begun developing with PMK's pyro and
> am
> > very happy with the results. I have found that a
> wash
> > with Sodium Metaborate makes a big difference (did
> a
> > role with and a role without). This is analogous
> to a
> > developer post wash, I believe. Seems to really
> > increase the range and gradation of the final
> > negative, to my naked eye...
> > 
> > To change the topic slightly, I scan my negatives.
> If
> > any of you have experience scanning stained
> negatives,
> > the question I have is do you scan as a grayscale
> or
> > do you scan as RGB and then convert to grayscale
> (I
> > use the Photoshop channel mixer tool to tune the
> red,
> > green or blue channels when I normaly convert an
> RGB
> > file to grayscale)? Seems this discussion has
> stated
> > that with a densiometer different readings are
> > obtained from stained negatives because of
> different
> > absorbtions of red, green and blue from a
> regularly
> > developed negative.
> > 
> > So again, my question as to whether it is better
> to
> > scan stained negatives as RGB and then convert or
> just
> > scan as grayscale. Opinions would be greatly
> > appreciated.
> > Thanks,
> > Bob
> > 
> > --- Eric Neilsen Photography
> > <eric@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > 
> > > In my experience, that amount of stain will
> change
> > > depending on wash time,
> > > quality of water and several other factors. If
> > > you're sure all your
> > > variables are kept to a minimum the change in
> stain
> > > should reflect that.
> > >
> > > I have used PMK, and Rollo, with and without
> using
> > > the developer as a post
> > > developing step; change pH.
> > >
> > > Eric Neilsen Photography
> > > 4101 Commerce Street
> > > Suite 9
> > > Dallas, TX 75226
> > > http://e.neilsen.home.att.net
> > > http://ericneilsenphotography.com
> > >
> > >
> > > > -----Original Message-----
> > > > From: pure-silver-bounce@xxxxxxxxxxxxx
> > > [mailto:pure-silver-
> > > > bounce@xxxxxxxxxxxxx] On Behalf Of Jeffrey
> Thorns
> > > > Sent: Sunday, December 11, 2005 4:50 PM
> > > > To: pure-silver@xxxxxxxxxxxxx
> > > > Subject: [pure-silver] Re: D-Max with pyro
> > > >
> > > > >Jeffrey Thorns wrote:
> > > > >
> > > > >>For those of you that use a pyro developer,
> > > > >>
> > > > >>Is it normal for the D-Max on a
> pyro-developed
> > > piece of film to be
> > > > >>noticably less than that with 'normal'
> developer
> > > on the same type
> > > > >>of film? (I don't have a densitometer, so I
> > > can't give you a
> > > > >>reading, but it is very noticeable, side by
> > > side.)
> > > > >>
> > > > >>When I look at the leader of film done in,
> say,
> > > Diafine, then at
> > > > >>the leader done in WD2D+, the density is
> > > noticeably less with the
> > > > >>pyro film. I've noticed that I have to print
> > > pyro negs with higher
> > > > >>contrast than non-pyro, but I understand
> that is
> > > somewhat
> > > > >>understandable, because pyro is a little
> > > softer-acting that a
> > > > >>normal developer. (?)
> > > > >>
> > > > >>
> > > > >
> > > > >Negatives developed in a staining Pyro
> developer
> > > will tend to look
> > > > >thinner than negatives developed in a
> standard
> > > developer.
> > > > >Densitometers don't work real well with Pyro
> negs
> > > anyway, as the
> > > > >stain is very complex.  The best way to tell
> if a
> > > Pyro neg is
> > > > >exposed/developed correctly is to make a
> print on
> > > you standard
> > > > >contrast printing paper.
> > > >
> > > > Do you find that the amount of stain is not
> > > consistant?
> > > >
> > > > What I mean is, it seems that, for the same
> type
> > > of film, some days
> > > > (batches of film) the stain seems stronger
> than
> > > other days.
> > > > Sometimes, there seems to be little stain at
> all.
> > > >
> > > > It also seems to vary by film. I just did some
> > > Fuji Acros last night,
> > > > and I'm not sure I see any stain at all.
> > > >
> > > >
> > >
> >
>
===============================================================
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> > >
> >
>
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> > 
> > 
> > Bob Adler
> > Palo Alto, CA
> > http://www.raflexions.com
> >
>
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=== message truncated ===


Bob Adler
Palo Alto, CA
http://www.raflexions.com
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