From: "Dave McCarter" 
To: "Mike and Sara" ,
        "ATM" 
Reply-To: "Dave McCarter" 


> significant is the difference between surfaces polished with cerium oxide
> and red rouge?  In other words, is the effect noticeable so that I should
> finish my mirror wiht a period of figuring with red rouge.

I polish out with CeO because it is fast and gives a nice surface. But even
under the Foucault test the surface looks granular in texture. Then I
figure with well ball milled rouge, stuff that will stay suspended in water
for days. Once full correction is achieved the surface is incredibly
smooth. The difference at the eyepiece is the difference between a
carefully crafted mirror, and a commercial mirror. You are not making
commercial mirrors are you?

Dave

--- BBBS/NT v4.00 MP