John
I believe I showed you photos of the copper flashing in the Type 316L SS pipe branch joint root. In any case, I used a Nikon Coolpix 4500 and a ten power Peak Optical Comparator, with a multipurpose graduated grid lens in it. I also showed you photos taken close up with the NIKON COOLPIX S-10 Digital Camera. This is the only readil;y available consumer camera with an internally moving auto-focusing lens complex, that can allow you to use it with the lens laying directly on a microscope eye piece. In addition, it can focus at 2 centimeters in Macro mode.