Celestron International -- Several product lines of telescopes, binoculars, spotting scopes, microscopes & eyepieces, plus a large variety of accessories. Visit

PierWedge.com -- Manufactures & sells equitorial wedges for permanently mounted Schmidt-Cassegrain telescopes. Visit

True Technology Limited -- English manufacturer of filter wheels, flip mirrors, filter units & dichroic filters. Visit

NPZ Optics State Corp. -- Russian manufacturer of high quality optical equipment for law enforcement & civilian use, such as day/night vision sights, powerful binoculars & astronomical telescopes. Visit

Webster Telescopes -- Manufacturer of Dobsonian telescopes in sizes from 22 inches to forty inches in aperture. Fully computerized GOTO control systems are available using either the ArgoNavis or ServoCat electronics. Product lines feature Kennedy Optics throughout. Visit

Trico Machine Products -- Makes the Sky Window binocular viewing system, & is a full machine shop specializing in design, prototype & production of quality machined parts. Visit

Compact Precision Telescopes -- Uniquely designed, collapsible open frame telescopes & primary mirror cells which are CNC machined from aluminum. Visit

Telescope Technologies Ltd. -- British manufacturer of large turn-key robotic telescope systems. Additional products & services include engineering research & development, project engineering management, instrumentation, complete electro-optical systems, plus a number of engineering related services. Visit

Al's Custom Telescope Accessories -- Produces oak tripods & accessories for Celestron's CG-5 telescope & CI-700 tripod, & for Meade's LXD55 telescope. Visit

Astro Works Corporation -- Manufactures the Centurion 18 telescope system which features a focal ratio of f/2.8. These instruments are designed for moderately wide field CCD imaging applications & asteroid patrols. Visit

Tau Ceti Company -- Accessories for astrophotography including the Universal Camera Mounting Adapter for attaching cameras/telephoto lenses to telescopes, the XY Finder for guide scopes & CCD guide cameras, plus the Flip-Mirror Focuser for CCD cameras located at the telescope's prime focus. Visit

Lumicon International -- Products include Easy Guiders, hypered film & hyper kits, diagonals, the Sky Vector NGC, richfield viewers & many other accessories for amateur astronomers. Visit

Rainbow Optics -- Offers the Star Spectroscope line of spectroscopy instruments for use with any telescope. Products are excellent for educational use, demonstrating the scientific information which can be gleamed from examining the spectrum of 'black body' radiation sources such as stars. Visit

Optical Development Workshop of Academy of Sciences -- Czech Republic developer & manufacturer of optics elements & systems. Visit

D & G Optical -- Offers optical supplies & equipment for astronomy-related sciences & persons interested in the astronomy field. Visit

Lee&Kao International Trade Co., Ltd. -- Chinese OEM & distributor of a variety of optics including binoculars, riflescopes, telescopes, microscopes, magnifiers & compasses. Visit

Company Seven Astro-Optics Division -- Offers custom design & fabrication of astronomical telescopes. Manufactures automated mounts/tracking platforms. Provides in-house optical design & fabrication services, repair services. Dealer for a variety of product lines related to astronomy & other industries. Visit

Astroparts -- Camera adapters, web cam adapters, superwedge for Meade LX-200 classic series, mirror lock screws, focus bearing kits plus a variety of other accessories. Visit