| Stuart Melvin's
Pyro Big Neg System
For Using Inexpensive Litho Film
Stuart Melvin of Santa Fe is making stunning
prints using enlarged negatives made from inexpensive litho film.
The secret is PMK Pyro. The following is an out line of the details
of Stuart's process. I will try to fill in any details after Stuart
finishes his write-up on this.
Interpositive- contacted from the
original negative
| • |
Film: FP4 or
Tri-X |
| • |
Develop |
| • |
D23 |
| • |
1:3 for more
contrast |
| • |
1:4 for less
contrast |
| • |
5-6 minutes
at 70 Deg. F. |
| • |
Follow Development
with constant agitation for 3 minutes in a 1% Balanced Alkali
(also called Sod. Metaborate, formerly Kodalk) |
| • |
Fix, wash and
dry |
Enlarged
Negative
| • |
Film:
Freestyle Sales Halftone Supreme - http://www.freestylesalesco.com
- Fax: (800) 616-3686 or (213) 660-3460 Direct Phone Orders:
(800) 292-6137 or 213-660-3460 |
| • |
Film Cost per
20 x 24 sheet is 194.50 per 100 sheet pack, also available in
25 sheet packs and in smaller sizes. |
| • |
Development |
| • |
PMK Pyro (Hutchin's
Formula)
Order the "Book of Pyro" |
| • |
Stuart Melvin
uses a 1/2 strength "B" (metaborate solution) instead
of the full strength listed in the book. [I believe this is
to lower the contrast of the litho as it is very contrasty.] |
| • |
He uses a 20
x 24 tray for 16 x 20 |
| • |
22-24 Deg C.
Temperature of developer |
| • |
7 minutes with
constant agitation. |
| • |
Wear gloves
as Pyro stains and is poisonous! |
Short stop - Dilute version
1 oz. 28% Acetic to 3 liters of water
Fix - Non Hardening
F24 Formula
Do not use Hypoclear as it washes out the stain!
Wash -
5 minutes
Post Stain
1/4 teaspoon Sod. Metaborate per Liter for 1 minute
Wash and dry
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