We coat new mirrors as well as re-coat your existing mirror. The primary mirror of a reflecting telescope is a spherical or parabolic shaped disc of polished reflective metal speculum metal up to the mid 19th century or in later telescopes glass or other material covered with a reflective coating. Tecnosky Telescope Ac 210 1200 Goliath Ota In general the primary mirrors of large telescopes are coated with a thin film of aluminum. . The usual full thickness ratio is 16 which means normal polishing techniques can be used on this kind of mirror. Large elliptical Diagonal Flat Mirrors We have begun production of limited batches of quartz EDMs. 100 MADE IN TAIWAN - Astronomical Primary Secondary Mirrors. With the telescopes astronomers can see the heavenly bodies but even without the telescopes one can see the moon. Please see prices below for our Primary Telescope mirror coating service price includes removal of old coating if...