</span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (LFGuy @ May 6 2003, 09:17 AM)</td></tr><tr><td id='QUOTE'> Here&#39;s a recent related question:

http://www.michaelandpaula.com/mp/AzoForum...&GID=1908&CID=1

I&#39;ve only tried Michael A. Smith&#39;s formula, so I can&#39;t comment on the others, but I&#39;ve heard they don&#39;t last nearly as long and don&#39;t work as well. Check out his site for the formula, developing times, technique, etc.

http://www.michaelandpaula.com/mp/Azo_Formulas.html

My &#036;0.02. </td></tr></table><span class='postcolor'>
You should get your amidol from Mike Jacobson at:

http://www.artcraftchemicals.com

Mike is quite familiar with all of Michael Smith&#39;s formulae.

You will also need sodium thiosulfate pentahydrate (plain fixer), citric acid, sodium sulfite and sodium (meta)bisulfite. Also, I put benzotriazole in my amidol but I seem to be in the minority.

Figure about 5 lbs. of fixer crystals for each gallon of working solution. I have gotten pink stain on my prints when using ammonium thiosulfate based (rapid) fixers with amidol. I didn&#39;t always get it, but it absolutely ruins your prints when you do. Better to be safe than sorry when working with precious amidol and Azo.