Old Azo postcard stock

[matt miller]

While I was printing last night, I decided to try some old expired (in 1921) Azo postcard stock that I bought on ebay a while back. After a few attempts, I got a decent print. The direction sheet that came in the package said to develop for 20 seconds. I found that it started to fog/mottle if I went longer than 12 or 15 seconds. I was using Amidol that I already had mixed up for regular Azo. It took a 5 minute exposure to get a decent looking print. Normal Azo with this neg takes 45 seconds.

Anyway, I thought it was pretty cool and wanted to share. The photo is here: (there was a url link here which no longer exists)

 

[David A. Goldfarb]

Nice. You might try just using the Smith's amidol formula for enlarging papers. I've found that along with the short development time works with my foggy 1950s Haloid Industro.