Re: ATM Bino Mirror Figuring

["Bill Prewitt" <bprewitt@neo.rr.com>]

I once made a pair of 8" f6 mirrors on the same tile tool and polished them on
the same lap, interchanging blanks every 15 minutes or so.

It resulted in two mirrors very close together in ROC, but I had terrible
problems with scratches in fine grinding.

          Bill Prewitt



My webpage of telescope making and caving
http://home.neo.rr.com/imaging

> I would reccomend working on one mirror at a
> time because when you polish the mirror inter-changing mirrors your figure
> will always be differnet between the two mirrors.