Comments on: B&W Reversal Processing Notes

By: Aaron Muderick

Aaron Muderick — Mon, 03 Mar 2008 02:03:13 +0000

Jordan, Thanks for posting this page and all the information it gives. I’ve done a bit of additional research and gotten some very nice looking results. I’ve posted my thoughts and methods here:

http://www.kryptosinistographer.com/2008/03/technique-for-m.html

By: Jordan

Jordan — Tue, 27 Feb 2007 13:44:09 +0000

Kevin, I don’t have a reversal formula handy, but they are all over the Web. Have a look at any site that gives reversal processing formulae. The sodium bisulfate version is an almost identical substitute and is easier to use, because sodium bisulfate is a powder. Dissolving sodium bisulfate in water creates a solution that is chemically identical to a equal mixture of sodium sulfate and sulfuric acid. (The sodium sulfate is photographically inert.)

Hope this helps.

By: Kevin

Kevin — Mon, 26 Feb 2007 21:41:27 +0000

Just wondered if you have a formula for dichromate bleach using sufuric acid? Is the sodium bisulfate version a reliable substitute for B&W revearsal processing?
Thanks,
Kevin.