[pure-silver] Re: Intensifying Negatives
- From: <C.Breukel@xxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Thu, 13 Mar 2008 09:17:13 +0100
Hi Richard,
Yesterday I tried intensification with In-5 (which contains Metol and relative
low Sulfite), it seems to have worked ok, I still have to print and compair
though. Selenium is indeed recomanded, but that is pretty final, ie you cannot
try bleach and redevelop afterwards, and people seem to report ½-1 grade boost
at most. I also agree that when there is no information in the shadows, you
cannot bring it back. Luckily that is not the case.
So I'll print this weekend, and if the IN-5 silver intensification was not
enough I can always try bleach and Pyro redevelop.
Best,
Cor
> -----Original Message-----
> From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-
> bounce@xxxxxxxxxxxxx] On Behalf Of Richard Knoppow
> Sent: donderdag 13 maart 2008 0:55
> To: pure-silver@xxxxxxxxxxxxx
> Subject: [pure-silver] Re: Intensifying Negatives
>
> At 04:49 AM 3/10/2008, you wrote:
> >..contemplating how to tackle this slightly underexposed and
> >underdeveloped 8*10 negative (and with quite some flare from the sun,
> >low from the left, just outside the image..I did shield the sun away
> >with the dark slide, guess the single coat from the Symmar shows..so a
> >further reduction of contrast). Processed in a staining developer
> >(PyrocatMC)..
> >
> >Printing on a high grade is not statisfactory, the negative needs punch.
> >So I was thinking about silver intensification(In-5) and/or bleach and
> >redevelop in a staining developer..
> >
> >
> >Best,
> >
> >Cor
> Its possible to bleach out the silver part of the image
> leaving the stain image and redevelop it. If its redeveloped in Pyro
> it will add more stain. Bleach in a re-halogenating bleach such as
> the ones used for Sepia toning. Beware that the negative must be very
> well washed because any residual hypo will combine with the bleach to
> form Farmer's reducer.
> It should be noted that intensification can increase contrast
> but will not make up for underexposure. If there is simply no detail
> recorded in the shadows there is nothing to intensify. So,
> intensification is mainly useful where a negative has been
> underdeveloped but fully exposed but will do little for underexposed
> negatives.
> The safest method of intensification is the use of a fairly
> strong dilution of Kodak Rapid Selenium Toner. The amount of
> intensification by this method is limited but it does not risk
> destroying the image altogether which is the case with some other
> intensifiers.
> Both the Pyro stain image and the Selenium toned silver images
> are very permanent. Some other intensifiers, such as those using
> mercury compounds, do not form permanent images.
>
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