D150F750 Parabolic Objective Lens Primary Mirror Newtonian Reflection Telescope For Sale
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D150F750 Parabolic Objective Lens Primary Mirror Newtonian Reflection Telescope:
$99.99
High Precision D150F750 Parabolic Objective Lens Primary Mirror for Newtonian Reflection Astronomical Telescope
Specifications:
Diameter: 150mm
Focal Length: 750mm
Edge Thickness: 18mm
Accuracy: pv 1/6-1/8λ
Coating: Aluminum coating, Protective film
The aluminum coating is added with a silica protective film, it can be used for 8-10 years under moisture-proof storage.
If you choose \"Primary Secondary\", you will get a 150F750 primary mirror and a 35mm secondary mirror. : )
Note:
Due to pure manual grinding and correction, maybe there will be some slight scratches on the surface of the lens, which cannot be seen when taking pictures.
It can only be seen in the daytime and when it is reflective.
It is produced when the mirror surface is polished and does not affect the use.
If you mind please do not place order, thanks for your understanding!
