Produces collapsible Dobsonian mounts which fold up for storage and transportation. Mounts are available separately or sold with Compact Precision Telescopes tube assemblies.

Produces solar filters and binocular mounts for amateur astronomers. Located in New Zealand.

Computer controlled telescopes, equatorial mounts with optional computer control, custom worm drive systems and custom accessories. Custom telescope retrofit and repair services.

Produces the Vanguard 500, a complete 20" Ritchey-Chretien Telescope system.

Portable and permanent telescope piers in custom sizes and heights. Custom manufactures accessories for special customer needs.

Worm gear drives for the accurate tracking of deep space and planetary objects for viewing and imaging. Stepper and synchronous motor power systems are available.

Affordable, quality telescope accessories and books for amateur astronomers.

Manufacturer and exporter of spotting scopes, binoculars, optical lenses and elements, plastic lenses, enlarging and CCD lenses, optical mounts. Offers optical design services.

Manufactures industrial laser systems and motion control products, precision and custom worm drives in a wide range of sizes and gear ratios, plus a complete line of telescopes, mounts, and control systems for astronomy.

Produces oak tripods and accessories for Celestron's CG-5 telescope and CI-700 tripod, and for Meade's LXD55 telescope.

Offers a variety of sports optics for the outdoor enthusiast. Products include binoculars and spotting scopes, including waterproof models.

Manufactures the AMF Equatorial Wedge, a very heavy duty equatorial wedge, for Meade & Celestron telescopes.

A Canadian sourcing, distribution and manufacturing of photographic, video and digital accessory products (OEM). Sales and reference site for Optisan binoculars.

Produces precision optical components, assemblies and small telescopes. Located in India.

Large telescope systems including Hypergraphs, Deltagraphs, Cassegrains and Ritchey-Chretiens, Newtonians, Dobsonians and Schmidt cameras.

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 and asteroid patrols.

Telescopes, mounts and accessories for observers and astrophotographers.

Makes AstroCards finder charts, the AstroCards lighting system for viewing the cards at night, and offers a variety of other products.

Specializes in the manufacture of 10" to 30" Newtonians and Folded Newtonians for amateurs, public observatories and universities. Company also sells primary mirrors with apertures up to 36".

Offers red LED flashlights for the discriminating astronomer.

Provider of custom telescope control systems, including the SkyWalker servo telescope control system and SkyRad accessory controller.

Designs and manufactures research grade telescopes, finder-guiders, filter boxes and spectrographs, and products for observatory domes. Services include consulting, instrument relocation and retrofits.

Offers a variety of binoculars and binocular stands. Features product lines for astronomy and birdwatching. Located in the U.K.

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

TeleKit Dobsonian telescope kits, equatorial platforms and altitude bearings for Dobsonians, focusers, collimating tools, telescope covers and other accessories.

Designs and manufactures large telescopes and mounts, including the CP-165 telescope mount. Offers stepper motor control systems and small telescopes. Located in the Netherlands.

Aluminum and flexible dew shields, caps and telescope covers for amateur telescopes. Many products are available in a variety of colors to match your telescope.

Alignment accessories and flexible dew shields for Meade ETX series telescopes and the Meade 497 Autostar.

Offers simple and GOTO telescope drives, sidereal time clocks and other electronics equipment for astronomers.

Offers customer labeled telescopes and binoculars to a wide range of businesses as corporate gifts and promotional tools.

British manufacturer of a wide range of astronomical telescope accessories and astronomy related accessories including the GigaWedge and GigaPier for Meade 16" LX-200 scopes.

Useful laser pointers with remote on-off switches, suitable for use as a star finder on a telescope.

Produces lightweight, medium-aperture, Dobsonian telescopes.

Quality hand crafted amateur Dobsonian telescopes and parts.

Beautiful heirloom quality terrestrial and nautical brass telescopes, hand held travel telescopes and all weather telescopes.

Manufactures the Teleport brand of Dobsonian telescope products for all markets outside North America. Offices located in the U.K.

Manufacturer of telescopes, binoculars, spotting scopes, riflescopes, laser rangefinders, speed guns, and weather resistant digital cameras. Products are designed primarily for outdoor, sports and nature enthusiasts.

Artistically designed tubes for use in Dobsonian telescopes.

Manufactures astronomical telescopes, observatories, domes, optics, focal plane instrumentation and LIDAR equipment. Company also manufactures products for healthcare, vision, measurment and analysis, research, sports, microelectronics, photography and projection applications.

Several product lines of telescopes, binoculars, spotting scopes, microscopes and eyepieces, plus a large variety of accessories.

Offers custom optics fabrication, design consulting and optical testing services for the scientific, industrial and astronomical communities.

Manufactures telescopes and binoculars, optical components including singlet, doublet, cylindrical and aspherical lenses, prisms and corner cubes, beamsplitters and waveplates, polarizers and coatings.

Specializes in the production of magnifiers, binoculars, spotting scopes, telescopes, rifle scopes, night vision devices and optical elements.

Chinese manufacturer of telescopes, binoculars, monoculars, rifle scopes, night vision equipment and disposable cameras.

Hand-crafted wood and brass telescopes, designed in the spirit of the 18th century.

Uniquely designed, patented focuser for use on a variety of telescopes. Offers optional electric focus mechanisms for their focusers.

Manufactures the I 3 eyepiece visual image intensifier system which features TeleVue optics, and an optional CCD video adapter for real time display.

Uniquely designed, collapsible open frame telescopes and primary mirror cells which are CNC machined from aluminum.

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

H-Alpha and white light solar filters and accessories for telescopes, plus the Maxscope line of dedicated solar instruments.

Product lines include small to medium aperture telescopes, binoculars, spotting scopes, educational tools and accessories.

Custom optics and interference filters with specialization in astronomical filters.

Manufacturers of light weight large aperture Newtonian reflector telescopes. Designs feature substantial improvements over standard truss tube Newtonians.

British company that manufactures telescopes, Newtonian mirror sets, eyepieces, and other accessories.

Offers optical supplies and equipment for astronomy-related sciences and persons interested in the astronomy field.

Makes Opticlean polymer for cleaning mirrors, lenses and corrector plates, and produces Laser Gold and Laser Rhodium mirrors for IR and scientific applications.

Products include mirror cells, helical and double helical focusers, eyepiece adapters, video camera adapters and eyepiece parfocal rings. Company is located in Canada.

Quality software and publications for astronomy and astronomy education. Manufactures the Deep Space Navigator telescope to computer interface, motor drives for Dobsonian mounted telescopes, high resolution optical encoders, plus custom encoder mounting hardware.

Professional Chinese optical products manufacturer and exporter, specializing in traditional binoculars, compact binoculars, zoom binoculars, waterproof binoculars, telescopes and microscopes.

Stereoscopic Binoviewers and Binoviewer accessories for low power, binocular viewing through telescopes.

Produces the Dew Zee line of dew control and light baffling shields for a wide variety of telescopes.

Advanced amateur and professional astronomical telescopes, telescope control systems and mounts, electro-optical telescopes, LIDAR systems, heliostats, siderostats/coeleostats, telescope optics and beam directors.

Produces a unique unobstructed Newtonian reflector which features improved contrast and resolution compared to conventional Newtonians.

Offers a complete line of Dobsonian reflectors up to 24" in aperture, plus optical primaries and elliptical flats.

Economically priced beginner telescope kits which are suitable for children six years and older or as a family project. Accessories, eyepieces, Baader Solar Filter material and completed telescopes are also available.

Offers advanced composite telescopes which utilize carbon fiber, Kevlar and honeycomb materials. Other products include Ritchey-Chretien telescopes, mirror cells, mounting plates and rings, and parts and accessories.

Produces complete line of Dobsonian reflector telescope kits and accessories.

Hong Kong based educational manufacturer and exporter of small telescopes and microscopes.

Concessionaire of coin-operated viewing machines, since 1973. Products include American-made coin-operated binoculars and telescopes.

Produces the well known Astroscan telescope, plus telescope kits, Barlows, eyepieces, telescope accessories and a variety of science education kits.

Offers turn-key observatory systems for astronomy and satellite laser ranging. Systems include telescopes and instruments, enclosures, integrated control systems and software for remote and autonomous operation.

Wood and aluminum motorized, low profile equatorial platforms for Dobsonian and other altazimuth telescopes. Various accessories including stepper motor control are available for astrophotography. Complete telescopes up to 28" aperture are also available.

Manufactures complete telescopes, optical tube assemblies and telescope mounts. Company also offers a variety of design services and produces Deep Sky Black, a low reflectivity surface treatment suitable for aerospace applications.

18" to 25" Newtonian optics for amateurs and scientists. Also makes diagonals and offers mirror testing, refiguring and coating services.

Manufacturers high quality permanent pier mount systems and unique accessories for telescopes. Astronomers ourselves, we use our own products. Low prices, made in USA.

Galileo's Place is the home of Galileo telescopes, binoculars, and accessories for telescopes and binoculars

Italian manufacturer of observatories, planetariums and geodes. Offers observatory structure maintenance services.

Custom made GoTo mounts which are designed to the customer's specifications, plus GoTo conversions of existing telescope mountings. Complete machining and fabrication services are also available.

Japanese manufacturer of planetariums and telescopes.

Taiwanese manufacturer of reflectors, refractors, Dobsonians, eyepieces, equatorial mounts and accessories.

Provides mirror and optical coating services, and caters to the industrial, commercial and aerospace industries. Specializes in custom optical coatings on large substrates up to 92 inches in diameter.

Astronomical telescope optics, oculars and accessories sold under the Astrola name. Company is owned by Larry Hardin, a former employee of Cave Optical.

Chinese manufacturer and exporter of military and outdoor optical systems. Product lines include spotting scopes, military binoculars ,astronomical telescopes, shooting & rifle scopes, military & professional compasses, night vision equipment plus other accessories.

Produces the Losmandy product line of precision equatorial mounts, dovetail systems, the Gemini goto control system and a variety of telescope accessories.

Products include the Astro Aimer, which features a green laser pointer for pointing telescopes, and a variety of red and white LEDs for map reading and general illumination at night.

Manufactures the BORG line of telescopes, binocular scopes, spotting scopes and optical tube assemblies. Additional products include motorized altazimuth mounts and a variety of accessories.

Japanese manufacturer and exporter of optical filters for telescope and industrial use.

Manufactures the Night Detective line of night vision optical equipment. Products include a wide range of day and night optical devices, night vision binoculars, night vision monoculars, goggles, opera glasses; plus binoculars, monoculars, scopes, telescopes and microscopes.

Provides thin film coatings and optics for science, medicine, aerospace, and military arenas. Also offers fabrication of optical components to exact specifications.

Produces the Uti product line of extremely lightweight and portable Newtonian telescopes, computerized telescopes and digital setting circles.

Custom insulated dew shields for refractors and compound telescopes.

NGT line of portable, equatorially mounted astronomical telescopes. Also makes various accessories including Motofocus focus motors, Motodec declination motors, R.A. drive motors, computer control systems and NGF focusers.

Dark Sky Laboratory produces telescopes which are individually manufactured to fit each customer's specific needs. Many parts of each customer's telescope are manufactured in house to assure quality control, and numerous options and customizations are available.

Precision machined equatorial tracking platforms for Dobsonian and altazimuth telescopes. Company offers a very unique, lightweight 18" pop-up carbon fiber travel telescope with full goto capabilities.

Manufactures tube rings, counterweights, mount saddle plates, guide scope adapter plates and dovetail plates. Also offers custom modified commercial telescopes.

Products include the Dew Remover System, portable power packs, Kwik Focus masks, observer tents, shelter domes and observing chairs.

Binocular, medium format camera and cinema camera stabilizers, plus gimbals, gimbal mounts, and inverters.

Canadian manufacturer of collapsible binocular mounts which include the tripod.

Japanese OEM manufacturer of telescope accessories including WIDESCAN Type III Eyepieces, orthoscopic eyepieces, laser collimators, a "correct view" finder, a unique helicoid off-axis eyepiece holder for Lumicon giant EZ guiders and the "HERCULES" Equatorial Mount with go-to capability.

Italian manufacturer of telescopes, binoculars, spotting scopes, microscopes, compasses and magnifying glasses.

Manufactures binoculars and telescopes, and offers OEM design and production services. Headquarters located in Kunming, China.

Chinese manufacturer of binoculars, monoculars, spotting scopes and telescopes.

Provides a wide range of thin film coatings, specializing in metallic and anti-reflection coatings. Experienced in cleaning and coating glass and metallic substates.

Produces the Astro Pier product line of telescope piers for fork mounted and German equatorial telescopes.

Numerous science and education products including, but not limited to, the STARLAB Portable Planetarium, Project STAR hands-on science materials, the Sunspotter solar telescope plus a variety of learning curriculums.

Newtonian mirrors made and certified in writing to the most exacting, demanding Millies LaCroix tolerance (1/8 wave at the wavefront), twice as precise as the industry 1/4 wave standard.

Taiwanese manufacturer of small refractor and reflector telescopes, microscopes.

Designs and manufactures portable Dobsonian telescope frames in the 12.5 to 18 inch aperture range.

Amateur and professional telescopes, microscopes, spotting scopes, night vision devices and 35mm film cameras.

Manufactures, installs and services opera glasses within theatres. The service is free to theatres, and allows patrons to rent opera glasses during a performance.

Taiwanese manufacturer of spotting scopes, field scopes, telescopes, and binoculars.

Products include Easy Guiders, hypered film and hyper kits, diagonals, the Sky Vector NGC, richfield viewers and many other accessories for amateur astronomers.

Offers the PortaBall line of telescopes with apertures ranging from 8" to 14-1/2". These instruments feature a unique spherical housing around the primary mirror location which makes pointing the instruments very intuitive.

Full product line of German equatorial and telescope mounts with full computer control. Mounts are available for telescopes up to 24" aperture and feature tapered conic sections for increased rigidity.

Designs and manufactures laser and optical components, telescopes and instruments for astronomy, education, and defense. Offers in-house mechanical and optical design, fabrication, and prototyping.

Several product lines of telescopes and accessories, eyepieces, CCD imaging equipment, astronomical software, spotting scopes, binoculars, and microscopes.

Chinese manufacturer of small telescopes, binoculars, spotting scopes. Also manufactures a variety of other products.

A variety of products, components and accessories for the amateur telescope builder. Also offers plans for building a telescope.

Chinese manufacturer and exporter of telescopes, binoculars, spotting scopes, monoculars, microscopes and tripods.

Extremely robust Crayford style focusers, focuser accessories, truss tubes and truss tube connector systems, plus telescope accent kits to personalize your telescope.

Telescopes and German equatorial mounts featuring DC servo motors and the Losmandy Gemini System with computer control using partial LX-200 emulation.

Manufacturer of telescopes, binoculars, riflescopes, monoculars and spotting scopes. Located in China.

Visual astronomy accessories including adapters, eyepieces, extensions, eyepiece parfocalizers, plus telescopes, hardware, and software.

Chinese manufacturer of binoculars, telescopes, riflescopes, spotting scopes, night vision scopes, golf scopes.

Optical company which manufactures telescope optics in a wide range of apertures for amateur and professional class telescopes. Site features the free Ultra-Trace telescope design program.

Novosibirsk Instrument-making Plant is one of the leading Russian manufacturers of high quality optical equipment for law enforcement and civilian use, such as day/night vision sights, powerful binoculars and astronomical telescopes.

Produces a variety of binocular designs for both terrestrial and astronomical applications.

Observatory class Ritchey-Chretien and Folded Newtonian robotic telescope systems which use proprietary hybrid band-worm drives. Also manufactures LIDAR and tracking platforms and custom designed drive retrofits for existing telescopes.

Manufacturer of Dobsonian telescopes ranging from 12-1/2" to 30" in aperture. Optional accessories include the ServoCAT servo drive system which may be combined with the Argo Navis digital setting circles.

Offers telescope accessories including mirrors, lenses prisms, and calibration equipment to the professional and amateur market. Site features excellent treatises on optical testing and terms used by opticians to describe optical quality.

Designs and manufactures custom astronomy filters and prescription sets, for a wide variety of university programs, observatories, government agencies, and international consortia. Develops solutions for the spectral, optical, and environmental demands of each filter application.

Photometers, telecompressors, electric Crayford style focusers, filter wheels and filters, and optical couplers for video microscopy.

Offers a variety of complete German equatorial telescope mounts for telescopes up to 20" in aperture. Also manufactures precision clock drives featuring worm gears up to 24" in diameter.

Czech Republic developer and manufacturer of optics elements and systems.

Research-grade, observatory class telescope systems for professional and discriminating amateur astronomers, plus custom designed instrumentation for specific needs.

Fabricates research-quality Newtonian, Cassegrain, Ritchey-Chretein and custom optics, opto-mechanical instruments including LIDAR systems and collimators. Manufactures the Nighthawk line of advanced robotic telescopes plus custom telescopes. Offers optical design and mirror testing services.

Produces, using a patented casting technique, low cost diffraction limited replica optical mirrors for astronomical and other applications.

Produces a large product line of binoculars for nature study, boating, hunting, astronomy, surveillance and other applications. Site also features on-line factory direct sales.

Home of the Sky-Watcher brand of astronomical refractors and reflectors, catadioptric Newtonians, Maksutov-Cassegrains, plus spotting scopes, mounts, eyepieces and accessories.

Newtonian and classical Cassegrain astronomical telescopes, German equatorial mountings, tripods and custom portable or permanent observatory welded steel piers.

Newtonian and Newtonian-Cassegrain reflecting telescopes, optical tube assemblies, telescope making components, binoculars, spotting scopes and microscopes, plus eyepieces and accessories.

Optical manufacturer of parabolic primary mirrors and elliptical diagonals for astronomical telescopes. Available primary sizes range from 12-1/2" to 25".

Buck's precision gears for LX-200s, EZ Balance counterweights, EZ Clutch and EZ Focus kits, Eye Opener visual backs, and Mounting Assistant plates for attaching telescopes to tripods.

Hong Kong manufacturer of cameras, telescopes, binoculars, optical glass lenses, and other optical science equipment.

Custom telescope parts and one-of-a-kind components, designed and machined in aluminum, stainless steel, brass, bronze, titanium, Teflon. Re-manufactures hard to find replacement parts for vintage telescopes. Can design new parts per customer specifications.

Offers repair, cleaning and collimation services for binoculars, telescopes, rifle and spotting scopes. Specializes in repair of antique and military instruments.

Professional-grade diagonal mounts and secondary mirrors, with unique features, for use in small to large telescopes.

High quality Maksutov Catadioptric telescopes for astronomy, nature, science and surveillance applications. Entire product line features superior optical performance, machining and finish. Established in 1950.

Compound reflective optical systems including Cassegrain, Ritchey-Chretien, Dall-Kirkham and various modifications. Refractive systems including achromatic and apochromatic objectives and full aperture corrector catadioptric systems including Schmidt, Maksutov and Houghton types along with near focal corrector systems. Also produces off-axis mirrors.

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.

Specializes in design and manufacture of Ritchey-Chretien telescopes for professional and amateur astronomers. Designs feature composite construction for thermal stability and reduced weight.

LED flashlights for astronomy and aviation, astrophotography accessories, collimation tools, finders, motorized focusers and controllers, plus other accessories.

Produces a variety of accessories for amateur telescopes including Solar Skreen, No Du Caps, polar axis finders and isostatic mounts for many commercial telescopes.

Produces the 24" SC-2048 turnkey scientific telescope system and the DriveScope stepper motor control system. Company also custom designs and manufactures complete telescopes, telescope mounts and optical tube assemblies.

Manufactures optical instruments including biological microscopes, stereo microscopes, telescopes and binoculars. Also produces electronic equipment and garden tools.

Designs and manufactures the Sky Commander product line of digital setting circles.

Offers the unique Solunar Watch with numerous features for astronomers.

Offers very strong telescope tubes which feature a unique honeycomb construction. Site features basic plans and ideas for the home telescope builder.

Travel Scope brand of medium sized Dobsonian telescopes with components CNC machined from Baltic birch cabinetry.

Green laser pointers for aiming a telescope, plus a variety of pointer brackets and accessories.

Uses the Ion Assisted Deposition (IAD) process to produce hard, durable, oxide optical thin films without high temperature substrate heating. Offers many types of coatings including protected aluminum and enhanced aluminum for astronomical mirrors as well as other applications.

Builds premium truss-tube Dobsonian reflectors in small to medium apertures. These apertures fill the void in commercially available, small to mid-sized truss-tube Dobsonians.

Australian manufacturer of motorized observing chairs which accommodate both the observer plus either binoculars or small telescopes.

Produces the Sgr-4, a 4-1/4" reflector on an altazimuth mount. Offers reflector telescope kits and accessories.

Manufacturers of a variety of night vision products including rifle scopes, Longbow day/night scopes, monoculars, binoculars, goggles and thermal imagers.

11" to 30" aperture portable Dobsonian telescopes featuring truss tube designs. Also offers the 12-1/2" ELGT telescope which includes the SkyTracker, providing goto and track capability.

8" to 30" aperture Dobsonian telescopes, available with a choice of optics produced by several well known opticians and optical companies.

Stiletto brand knife-edge focusers, wide-field adapters, plus accessories for 35mm, CCD, and medium format cameras.

Telescope control systems and Argo Navis digital setting circles for Dobsonians and equatorially mounted telescopes.

Specializes in hand crafted refractors and apochromatic refractors. Offers telescope mount and tripods, spotting scopes plus a variety of accessories.

Austrian manufacturer of binoculars, telescopes, rifle scopes, night vision instruments, and tripods.

Refractor, reflector and Dobsonian telescopes; binoculars for birding, hunting, marine and long range applications; plus spotting scopes, microscopes, theater glasses and weather instruments.

Motor focusing systems for most reflector and refractor telescopes including Meade, Sky-Watcher and Orion telescopes. Systems are also available for Meade ETX-90 amd ETX-105 telescopes.

Offers a full line of mounts and crutch tripods for comfortable, steady binocular viewing.

Wholesale manufacturer of binoculars, monoculars, goggles, sights, spotting scopes, photocameras, lenses, telescopes, microscopes.

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

Offers the TAURUS Tracker III combination flip mirror and off-axis guider for both film and CCD astrophotography, plus a sealed, self-hypering HyperCamera with direct-view focusing using any eyepiece.

Produces Dobsonian telescopes in a variety of sizes. The company's FarStar telescope claims to be the lightest weight 18" Dobsonian telescope available from any manufacturer. This company also offers telescopes which are custom built per customer specifications.

Produces the Giro altazimuth tripod mounts, Dobsonian and equatorial drive systems, laser collimators, equipment beacons for use at star parties, plus additional products. Exclusive USA distributor of ASM telescopes which feature lightweight ceramic mirrors.

Offers collimation tools including basic sight tubes, Chesire eyepieces and autocollimators.

Offers portable Dobsonian telescopes which are designed to collapse down into an extremely compact cubes for transportation.

Repair services for Meade LX-200 series telescope electronics.

Apochromatic refractor and Maksutov-Cassegrain telescopes plus precision optics including including optical flats, Cassegrain, Catadioptric, Newtonian, Ritchey-Chretein, Mersen and other optical designs.

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

Russian manufacturer of TAL brand telescopes including refractors, Newtonians, and Klevtsov modified Maksutov-Cassegrains; and additional products including binoculars, night vision equipment, riflescopes and many accessories.

Premium refractor telescopes, eyepieces, and accessories. Products include Nagler eyepieces, Panoptic eyepieces, Radian eyepieces, Plossl eyepieces, Barlows, Powermate, Ranger, 101, fluorite and apochromatic refractors.

Solar filters, solar eclipse viewers, H-Alpha filters and nebular filters.

Makes the Sky Window binocular viewing system, and is a full machine shop specializing in design, prototype and production of quality machined parts.

English manufacturer of filter wheels, flip mirrors, filter units and dichroic filters.

Chinese manufacturer and exporter of binoculars, telescopes, monoculars, golfscopes and spotting scopes.

Optical instrument mounts including the T-Mount, UniMount and UniStar for binoculars and telescopes. Retailer for a variety of other product lines.

Suppliers of astronomical accessories, binocular viewers, eyepieces, binoculars, telescope building supplies, software, books, and components to build a "Cookbook" CCD camera.

Versa-Port Sliders, Monster focusers, bifilar micrometers and turret eyepiece holders.

Telescopes and telescope mounts, binoculars, Lanthanum eyepieces and other accessories.

Australian manufacturer of Argo Navis Digital Telescope Computer systems for alt-azimuth, fork and German equatorial telescope mounts.

Chinese manufacturer and distributor of telescopes, binoculars, spotting scopes, rifle scopes and other optical instruments.

Manufactures Newtonian optical systems, all types of Cassegrain optical systems including an enhanced Ritchey Chretien optical system with integral field corrector, modified Wynn field correctors, plus optical tube assemblies and complete telescopes made from composite materials. Optical testing services are also available.