Astronomy

Peterson Engineering Corp.
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - Peterson Engineering Corp.. 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.
http://peterson-web.com/index.html
R.F. Royce - Precision Optical Components
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - R.F. Royce - Precision Optical Components. Compound reflective optical systems including Cassegrain, Ritchey-Chretien, Dall-Kirkham and various modifications.
http://rfroyce.com/
Learning Technologies, Inc.
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - Learning Technologies, Inc.. 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.
https://www.starlab.com/
Retriever Technology
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - Retriever Technology. Specializes in designing and building high performance digital image capture devices.
https://www.retrievertech.com/
Collins Electro Optics - Image Intensified Astronomy
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - Collins Electro Optics, LLC. Manufactures the I 3 eyepiece visual image intensifier system which features TeleVue optics, and an optional CCD video adapter for real time display.
http://ceoptics.com/
Beta Electronics, Inc.
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - Beta Electronics, Inc.. Useful laser pointers with remote on-off switches, suitable for use as a star finder on a telescope.
http://www.betapointer.com/
ScopeCraft, Inc.
ScopeCraft,Inc. specializes in large telescopes and drive systems
http://scopecraft.com/
SmartAstronomy
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - SmartAstronomy. Quality telescope and astronomy accessories and cases.
http://www.smartastronomy.com/
Optec, Inc. :: Home
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - Optec, Inc.. Photometers, telecompressors, electric Crayford style focusers, filter wheels and filters, and optical couplers for video microscopy.
https://www.optecinc.com/
MI Telescope Mount Family
Science, Astronomy, Business, Telescopes, Binoculars and Accessories - Mathis Instruments. Full product line of German equatorial and telescope mounts with full computer control.
http://www.mathis-instruments.com/