RE: Reversal processing for enlarged negatives

From: Loris Medici ^lt;loris_medici@yahoo.com>
Date: 03/24/04-05:46:31 AM Z
Message-id: <003c01c41195$a8b1f250$ce02500a@altinyildiz.boyner>

 
Keith? Hi, didn't know you were here too...
 
Finding any large format B&W film is a big problem in my area (even
4x5). One can find color reversal film, because pro's doing advertising
photography use it but B&W... no way! Also, contone camera film is
pricey compared to lith film. For instance, I can get 20" x 100' roll of
lith film for $160 - including *custom cutting* price. See? Digital
negatives are also very costly to me - I have to order inks (Piezotones)
and Pictorico OHP from the States. I would rather prefer to use my
precious quad black inks for pozitive prints on paper and to me,
8.5"x11" Pictorico price - including shipment to Turkey - for a single
sheet is around $2.1. Also I have problems with banding in highlights of
the print (dense parts of the negative). So, I have to do it with lith
film - knowing that there are people very happy and satisfied with their
enlarged negatives made on lith film makes me think that *I* also can do
it with carefully applied / refined technique. It's a matter of learning
and exercising I believe...

Thanks for the suggestion anyway,
Loris.
 
P.S. From now on, I will *definitely* place a black sheet under the
negative.
 
-----Original Message-----
From: Editor P.O.V. Image Service [mailto:editor@p-o-v-image.com]
Sent: Wednesday, March 24, 2004 1:20 PM
To: alt-photo-process-l@sask.usask.ca
Subject: Re: Reversal processing for enlarged negatives

Instead of using lith film, you may want to consider using TechPan
sheets with D19 + K Thiocyanate (or added NaS) as the first developer,
and D19 without K Thiocyanate (or NaS) as the second developer. That
combination gives a very lith-like final reversal image, BUT avoids the
grain clumping you are seeing. Part of that is simply an outgrowth of
greater consistency of distribution of the silver through the TechPan
emulsion (better quality control).

In any case, placing a black sheet beneath the negative would help
decrease both base fog and halation effects in the enlarged sheet.
Received on Wed Mar 24 06:44:40 2004

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