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GSFS20

GSO Guan Sheng Optical
in stock
GSO Newtonian secondary - elliptical, minor axis 20mm


24,00 EUR
incl. 19 % Tax
excl. 6,00 EUR Shipping costs


Description
Elliptical secondary mirror for Newtonians - minor axis of 20mm - AD037

GSO Fangspiegel für Newton Teleskope

GSO produces highly accurate elliptical flats, used for example for self made Newtonian telescopes.

Accuracy ... The surface of the secondaries has a flatness of 1/12 wave RMS or better.

Reflectivity ... The mirrors are aluminized, the reflectivity is 91 %. The aluminium layer is quartz overcoated to make the layer durable against aging effects.

Technical data of the mirror:

-- Diameter (minor axis) ... 20mm
-- Thickness ... 8mm
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E-Mail: info@teleskop-service.de • Phone: +49 (0)89-1892870 • Fax: +49 (0)89-18928710
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