Auteur: PAyral
Date: 01-07-2008 15:23
Si certains films ortho sont trop contrastés faire un essai avec du révélateur Soemarko LC-1.
Bien sur il va falloir mettre un peu la main à la pâte:
Soemarko LC-1: Stock A
water 750 ml
metol 3.0 gr.
sodium sulfite 60.0 gr
hydroquinone 3.0 gr
cold water to make 1.0 liter
Soemarko LC-1: Stock B
sodium bisulfite 10.0 gr
water to make 1.0 liter
Dilution
You can use a standard dilution of 2:3:5 (stock A : stock B : water) and developed for 5 to 7 minutes at 75F. Agitate continously and vigorously. Do not fill your tray too full as agitation will be difficult. Lift one side of the tray as high as you can before the chemical spills. Put the tray down, and repeat for each side of the tray. Do this continuously.
To develop longer or shorter or to develop at a different temperature, you can increase or decrease the amount of water (too much dilution, however, will give capacity problem and you might see mottling, streaking, or unevenness). To do your own test with lith films other than APH or APHS, you can try different combination of stock A and stock B. Keeping the total amount at 10, you can try 2:1:7, 2:2:6, 2:3:5, etc. The total amount does not have to be 10, of course, but this amount affects the capacity of the chemical more than it affects contrast, so for a starting point, keep the total amount to 10 and only adjust it after you have reached the combination the works for your film.
Fait trop chaud pour traduire…
PAyral
http://pagesperso-orange.fr/payral
http://www.apug.org/forums/portfolios.php?u=2668
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