</span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (dnmilikan @ Feb 20 2003, 05:19 AM)</td></tr><tr><td id='QUOTE'> David, I concur with your experience using Azo. With Amidol, it is wonderful stuff. The best that I have used. The Amidol is pricey but the quality keeps me coming back. </td></tr></table><span class='postcolor'>
The way Michael Smith describes it is that the development occurs on the very top of the emulsion (using amidol). Perhaps the extreme thinness of the silver layer contributes to the percieved sharpness.