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black and white reversal film

Curtis Bouvier , Sep 15, 2010; 12:35 p.m.

does any one else make this film aside from Agfa? I was able to find Agfa on B&H. and I was also able to find it in motion picture super 16mm


But doesn't any one make this film like that is widely available? like ilford / fuji / kodak etc. black and white slides in medium format could be nice.

Maybe i'm missing something here, any ideas?


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Starvy Goodfellows , Sep 15, 2010; 12:43 p.m.

Agfa Scala can still be picked up in the auction site from time to time however, processing is so very difficult to source. I still have one unused roll left.

Tom Harvey , Sep 15, 2010; 12:55 p.m.

I believe that Freestyle Photo Supply in Los Angeles has it in 35mm x 100 feet rolls. The chemistry I'm not sure about.

Alan Marcus , Sep 15, 2010; 01:13 p.m.

Ordinary black & white film can be processed to yield a black & white slide.
Best choose a slow film with fine grain. Multiply ISO by 2.5 to calculate revised ISO.

1. D19 developer (+ 2 grams per liter potassium thiocanate) 6 minutes 20C or 68F
2. Wash 5 minutes running water
3. Bleach solution bleach R21 solution A 4 minutes
4. Wash 5 minutes
5. Clear solution bleach R21 solution B 2 minutes
6. Rinse running water 30 seconds
7. Re-expose to 150 watt lamp (film 24 inches from lamp on reel) 2 1/2 minutes
8 Re-develop D19 4 minutes
9. Rinse running water 30 seconds
10. Fix in conventional fixer 5 minutes
11. Wash 20 minutes

Metol (Elon) crystals 2 grams
Sodium sulphite anhydrous 90 grams
Hydroquinone crystals 8 grams
Sodium Carbonate 45 grams
Potassium bromide crystals 5 grams
Add water to make 1 liter

Bleach R21 A:
Water 500 ml
Potassium dichromate 50 grams
Water to make 1 liter

Bleach R21 B:
Water 500 ml
Sodium sulfite anhydride 50 grams
Sodium hydroxide 1 gram
Water to make 1 liter

Franklin Polk , Sep 15, 2010; 01:18 p.m.

Foma makes a reversal b&w film, R100, (IIRC), although I'm not 100% sure if it is available in 35mm yet. There is also a place (one of the few places that processes Scala, incidentally), www.dr5.com, that will process most negative b&w films as slides. They have samples for most current films on their website.

Curtis Bouvier , Sep 15, 2010; 01:40 p.m.

why is this film not available, why is no one making it? what seems to be the problem

Curtis Bouvier , Sep 15, 2010; 01:40 p.m.

or I should say, why is it not widely available? you'd think it would be

JDM von Weinberg , Sep 15, 2010; 02:19 p.m.

Alan has it. "Reversal" is processing as much as a type of film.
It does require, as he points out, a much thinner negative to yield best results.

Alan Marcus , Sep 15, 2010; 03:26 p.m.

Curtis, reversal black & white films are a thing of the past. Today we use digital cameras and editing software. All good photo editors, with a click of the mouse, transform the digital image to a black & white (monochrome) either positive or negative.

If we produce a black & white revisal (slide) we will be projecting it on screen for viewing. That means procuring a slide projector. These are still available but rapidly becoming a thing of the past because we now project digital images using LCD - LED - or Micro-Mirror projectors.

Look for all films and film cameras and the apparatus of developing, to be phased out in the near future. No matter what you or others think, this entire industry is chemical based and the cost of maintain a manufacturing line is too steep especially is an era where sales of film is going down the tubes, replaced by digital apparatus.

Look to the museums to preserve these tools just as they have with Civil War field medical instruments

Henry Posner , Sep 15, 2010; 04:36 p.m.

FWIW, Kodak's 8121188 was T-Max 100 Direct Positive Developing Kit for Black & White Slide Developing of T-Max 100 and Tech Pan Film. Soup a roll of T-Max 100 and out came b&w slides. Sadly discontinued.

Henry Posner
B&H Photo-Video

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