Monday, September 29, 2014

PBCRevDev1

This is an adaptation from E72, Chris Patton's D72 clone

PBCRevDev1:

Water (125°F/52°C)350 ml
Phenidone / Metol0.3g / 3g
Sodium sulfite45g
Salicylic Acid1g
TEA1ml
Ascorbic Acid19g
Sodium Sulphate40g
Sodium carbonate anhy / mono70g / 90g
Water to make500ml

I don't usually add hypo to my developers, so feel free to add yours. Note that this is double streingh, compared to D72.

I use Metol for a developer agent. It's cheap and I always have it around for other projects. I have Phenidone, but it is a bit of a PITA to keep preserved. Your choice, as the results are about the same.

The Salicylic Acid and TEA prevent the dreaded REDOX reaction that kills ascorbic acid developers. The developer can be used without one or either of them, but life could suck when you have film that doesn't get developed.

I removed Potassium bromide from this developer, as we don't really need a restrainer to reduce fog. The Bleach / Clear steps take care of this.

Most ingrediants should be easy to source. There are no restricted components used and even B&H can ship these worldwide. I live in Canada and their doesn't seem to be an issue.

I convert baking soda (arm & hammer variety) to sodium carbonate (anhy) by putting it in the oven on some tin foil, 350f for a couple of hours is enough to do the conversion.

This recipe is double strength. If you want consistency, top up to 1000ml.

The sodium sulphate reduces the swelling of the gelatin. It normally is used for high temp developers which also means you have some leeway to increase your dev temp to get faster development times.

Some spots I had on my images turned out to be small points where the gel left the base. So far this developer seems to help. Please let me know how it works for you.