MODAS - Modern Optical Design and Analysis Software (Popularity: )

Paraxial and Seidel calculations, spot diagrams, ray fans, 3D wave aberrations and energy distribution, optical ...
Category: Science\Physics\Optics\Software

Java Based Optical Design and Analysis Software (Popularity: )

Based on telescope design program MODAS, can design and analyze one mirror and classical two ...
Category: Science\Astronomy\Amateur\Amateur Telescope Making

Rensay, Inc. (Popularity: )

Authorized Meade and Selsi dealer specializing in telescopes, binoculars, magnifiers, loupes, filters, and accessories. Located ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Astrozap Dew Shields (Popularity: )

Aluminum and flexible dew shields, caps and telescope covers for amateur telescopes. Many products are ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Advanced Optics Limited (Popularity: )

Produces the Vanguard 500, a complete 20" Ritchey-Chretien Telescope system.
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Orion Telescopes and Binoculars (Popularity: )

Dealer of telescopes, binoculars, and accessories for amateur astronomers and nature enthusiasts.
Category: Science\Astronomy\Business\Educational Resources

Getting Started in Astronomy (Popularity: )

Guide for choosing a first telescope, and including types of telescopes, accessories, terms, and dictionary.
Category: Science\Astronomy\Amateur\Beginners

It's Full of Stars (Popularity: )

Equipment information, gallery, articles, and links, with information for the East Sussex Astronomical Society.
Category: Science\Astronomy\Amateur

Backyard Astronomer (Popularity: )

Contains sections for equipment, the beginner, books, the solar system and deep sky, web log, ...
Category: Science\Astronomy\Amateur

Orion Telescope Center (Popularity: )

Manufacturer and retailer of telescopes, spotting scopes, binoculars, eyepieces and accessories. Located in California.
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Parallax Instruments (Popularity: )

Newtonian and classical Cassegrain astronomical telescopes, German equatorial mountings, tripods and custom portable or permanent ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Oldham Optical U.K. (Popularity: )

Offers telescope accessories including mirrors, lenses prisms, and calibration equipment to the professional and amateur ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Optical Guidance Systems (Popularity: )

Research-grade, observatory class telescope systems for professional and discriminating amateur astronomers, plus custom designed instrumentation ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories

Optical Mechanics, Inc. (Popularity: )

Fabricates research-quality Newtonian, Cassegrain, Ritchey-Chretein and custom optics, opto-mechanical instruments including LIDAR systems and collimators. ...
Category: Science\Astronomy\Business\Telescopes, Binoculars and Accessories