in stock
in stock

GSO parabolic Newtonian primary mirror 12" diameter f/4

instead 581,51 EUR
only 441,18 EUR
excl. VAT
excl. 4,95 € Shipping costs

GSO Hauptspiegel Newtons Parabolic primary for Newtonian telescopes
Diameter 300mm / 12" / Focal length 1200mm - f/4

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 ... 94% Reflection coating for a better reflectivity
Technical data of the mirror:

-- Diameter: 300mm / 12"
-- Focal length: 1200mm
-- Focal ratio: f/4
-- Thickness: 39mm
-- Weight: 6,3 kg
-- Reflectivity: 94%
-- Center marked for collimation

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