DIY Newtonian reflection astronomical telescope Mirrors Optical Glass 114mm F900 For Sale
DIY Newtonian reflection astronomical telescope Mirrors Optical Glass 114mm F900:
$18.79
SphericalMirrorNewtonian reflection astronomical telescope Dia.114SpecificationCaliber: 114mm,Focal length: 900mm, 500mmThe thickness of the main mirror about 15mm,Spherical mirror, aluminum plating and protective film,Accuracy of the mirror: 1/6 waveAluminized plus protective film, a layer of SIO (silcon oxide) .The mirror axis of the secondary mirror (short side diameter) Length 25mm. and long side diameter 35mm
SphericalMirrorNewtonian reflection astronomical telescope Dia.114
Specification
Caliber: 114mm,
Focal length: 900mm, 500mm
The thickness of the main mirror about 15mm,
Spherical mirror, aluminum plating and protective film,
Accuracy of the mirror: 1/6 wave
Aluminized plus protective film, a layer of SIO (silcon oxide) .
The mirror axis of the secondary mirror (short side diameter) Length 25mm. and long side diameter 35mm
