A gathering place for folks who have a common interest in finest quality Newtonian primary mirrors. We are an information center for discussion from a technical and manufacturing standpoint, as well as performance in the field. The archives of this forum contain a large body of mirror-making information. We cover machines, testing, polish, figuring, anneal; essentially every subject related to the fabrication of a primary mirror. The methods used by Zambuto Optical Company are contained in this body of work.

Zambuto Optical Company is a full service custom manufacturer. We fabricate Newtonian primaries from 7" diameter through 24" diameter, typically in focal ratios from F/4 to F/"long". We have full glass processing capability from raw sheet glass through machining, anneal, and full fabrication to the finished product. We serve the domestic and international markets, both amateur and professional.

Group Owner- Con Stoitsis, Melbourne Australia
8 in F/6 ZOC Mirror

Photo is a cross polarization strain test on a 16" fused quartz mirror blank. Image shows a flawless test along with a reflection ring, a pressure spike at the bottom and some residual dust. Why are we imaging a quartz strain test? Because we annealed it... at 2,048 degrees Fahrenheit.

Send inquiries for mirrors and telescope photos for front page to stedystate@aol.com