Manufacturer: -TS Zubehör
Product number: GSHS200f6Q

EUR 625,00


incl. 19 % VAT (DE)  
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excl. 6.95 € shipping costs (DE)  
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TS 8" f/6 parabolic primary mirror for self construction of Newtonian telescopes
This parabolic primary mirror satisfies with a particularly smooth and accurately finished surface. We recommend this mirror especially for the do-it-yourself construction of a high-quality Newtonian telescope, but also for upgrading an existing telescope. The image produced by this mirror is above standard. We guarantee an image which is better than diffraction limited.

Quartz glass mirror substrate:
Each material has its own coefficient of thermal expansion. This is essential for the mirror´s reaction to temperature changes. The lower this expansion coefficient, the less the mirror reacts to changes of temperature. It is ready to use more quickly and, above all, the focus drift during astrophotography is reduced.

The mirror blank of fused quartz has no recognisable expansion, so it is superior to popular mirror blanks of Pyrex or Suprax, similar to Zerodur. For this reason, a quartz glass mirror is particularly suitable for astrophotography. Due to its excellent surface, we also recommend this mirror for building high-resolution Newtonian telescopes for visual observation.

If you want to have your mirror checked directly by a tester of your choice, we will gladly provide you with our recommendation.
Diameter:8" - 200 mm
Focal length:1200 mm
Focal ratio:f/6
Mirror substrate:Quartz glass
Reflectivity:94%
Thickness:25 mm
Weight:1.65 kg
8" f/6 Primary mirror



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