Coulter Optical Is one of the oldest and best known names in telescope optics. All Coulter mirrors are made from the highest quality precision annealed optical glass, then expertly hand- figured to a surface accuracy of at least 1/8 wave
Discovery Telescopes All of our mirrors are guaranteed to meet the theoretical limits of resolution for their aperture. We do not use mass produced, imported optics
Galaxy Optics
Manufacturers of precision 18" to 25" Newtonian telescope optics
for astronomers and scientists who want nothing but the best
Lightholder Optics Newtonian Mirrors made and certified in writing to the most exacting standard, 1/8 wave at the wavefront, twice as precise as the industry 1/4 wave standard
Nova Optical Fine annealed PYREX or fine annealed zero expansion SITALL,
hand figured to produce a smooth zone-free surface!
Pegasus Optics Primary mirrors are 1.6" or 2" thick, precision-annealed and blanchard ground on the back surface. Thickness and diametral tolerance is .125". Standard focal length is as shown on the price list
Star Instruments
Manufactures professional-quality custom optics, specializing in Ritchey-Chretien and Classical Cassegrain optical systems
Swayze Optical
We are here to serve the needs of amateur astronomers and telescope builders who are looking for high quality Newtonian mirrors
United Lens The Optical Shop Division manufactures finished mirrors, prisms, windows, and other flat optical components
Woden Optics
Our mission is to support the Astronomical, Scientific & Government/Military community on all levels by providing advanced-technology high-quality Goods and Services