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GSHS200f4

GSO Guan Sheng Optical
in stock
GSO parabolic Newtonian primary mirror 8" diameter f/4


196,00 EUR
incl. 19 % Tax
excl. 6,00 EUR Shipping costs


Description
GSO Hauptspiegel NewtonsParabolic primary for Newtonian telescopes
Diameter 200mm / 8" / Focal length 800mm - AD048

For the amateur telescope maker, GSO manufactures high-end parabolic mirrors with very precise and smooth surface.

Substrate ... All GSO mirrors use, according to the manufacturer, the optical BK7 glass as substrate. BK7 is a very homogenous material.

Accuracy ... The surface of the parabolic mirror is at least diffraction limited. The roughness is better than 1/16 wave RMS.

Reflectivity ... Each mirror bears an aluminum layer of 94% reflectivity. This layer is quartz overcoated for protection. Hence the coating is tough and resistent against age effects.
Technical data of the mirror:

-- Diameter ... 200mm / 8"
-- Focal length ... 800mm
-- Focal ratio ... F/4
-- Thickness ... 25mm
-- Weight ... 1,9kg
-- Reflectivity ... 94%
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