GSHS200f4
(1 review)


in stock
in stock

GSO parabolic Newtonian primary mirror 8" diameter f/4


instead 231,09 EUR
only 209,24 EUR
excl. VAT
excl. 4,95 € Shipping costs


Description:
GSO Hauptspiegel Newtons Parabolic 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 ... 1,8kg
-- Reflectivity ... 94%
-- Center marked for collimation

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Customer reviews:

Author: Marco Leite, 04.05.2016
Evaluation: TEXT_OF_5_STARS

"Very good quality mirror. "
 
 
 

 

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