First attempt at positive reversal development generic cr50 ISO 100 #B&W film. Shot at 100, developed with #D72 with additional 6.7 ml of Sodium Thiosulfate (32g/l of water) bleached with hydrogen peroxide 9% solution with 10g of citric acid and 2g of ascorbic acid, 2nd developer and fixed with 1tsp of "iron out" in 1 litre of (distilled!) water. Results appear to be too high pH (I believe the pH is actually too LOW - the acid bringing it down to 4 or less - but we're getting out of my limited expertise) in the #bleach, or incomplete bleaching regardless. We do have mostly full positive images. Possibly too little iron out, but the symptoms of yellow stain and blistering appear to be bleach symptoms. Fun, but somewhat disappointing. There is some art in there, but I would prefer it was more intentional.... Some #post-process adjustment, mostly for color saturation and contrast. The emulsion is dense and dark and very tactile. Some of the blistering is almost 3D because it is in the surface layer or at least on a different layer. Back to the drawering board!

Fotograf:
mike1allison
Hochgeladen:
2020-05-16
Tags:
H2O2 bleach animals b b&w bleach bw city d72 experimental failure filmisntdead filmneverdied iron out ironout lomo lomography nikon positive post reversal s&w self-developed sw testing transportation urban wildlife
Kamera:
Nikon F4s
Film:
Lomography BW iso 100
Objektiv:
AF Nikkor 28-80mm f3.5-5.6G
Stadt:
Uintah
Land/Region:
United States
Albums:
Positive reversal failure 001
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