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GSHS300f5

GSO Guan Sheng Optical
in stock
GSO parabolic Newtonian primary mirror 12" diameter f/5


536,00 EUR
incl. 19 % Tax
excl. 8,50 EUR Shipping costs


Description
GSO Hauptspiegel NewtonsParabolic primary for Newtonian telescopes
Diameter 300mm / 12" / Focal length 1500mm - AD017

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 91% reflectivity. This layer is quartz overcoated for protection. Hence the coating is tough and resistent against age effects.
Technical data of the mirror:

-- Diameter: 305mm / 12"
-- Focal length: 1500mm
-- Focal ratio: f/5
-- Thickness: 39mm
-- Weight: 6,5 kg
-- Reflection: 94%
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