What are the chemicals needed and the process for doing vandyke Brown processing?

-- Dennis Murphy (damphoto@snet.net), April 22, 2000

Answers

I have used this one. The Photographers Formulary should have kits already packaged.

1 Oz Distilled water 2.5 gm Ferric Ammonium Citrate 0.4 gm Oxalic Acid

mix well then add:

1 gm Silver Nitrate

Filter and let stand overnight.

Develop in 1 tsp Sodium Sulfite in 1 quart of water for 5 minutes

Fix in 1 tbsp Hypo in 1 quart of water.

Wash well.

I believe there are some cautions on oxalic acid crystals and silver nitrate. Check with a chemical supply house to make sure.

-- Tony Brent (ajbrent@mich.com), April 22, 2000.