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A unique two-mirror unobstructed reflector featuring exceptional contrast and resolution at the fraction of the cost of equal aperture refractors.

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Binoculars, microscopes, door viewers, meter,s crystal decorations, gemstone gift boxes, educational toys; in Hong Kong.

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Russian manufacturer of refractors, newtonians and telescopes. Offers a discussion group, articles, and regional sales websites.

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Manufacturers of precision astronomical mirrors for Newtonian telescopes and other optical designs for the amateur and professional astronomer.

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Carries telescopes geared toward both the beginning as well as the seasoned astronomer. Provides astronomical information and help on choosing equipment.

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Manufacturer of low-cost Coulter Odyssey series of Dobsonian telescopes, as well as CCD camera and 35 mm camera accessories for astronomy, Johnson and Kron-Cousins UBVRI photometric filters, RGB tricolor imaging, subtractive, infrared and ultraviolet imaging filters, infrared block filters, flip mirror finders, beam splitters, filter wheels.