Feature(may vary by option.)

●Astronomical Telescope Reflective Telescope Secondary Mirror
●The mirror is a spherical mirror with aluminized surface and a protective film to prevent scratches on the main mirror under light touch.
●Dimension tolerance: ±0.5mm
●Surface accuracy PV: 1/4-1/6λ
●Purpose: used as a Newtonian astronomical telescope optical axis steering

[35mm]

Description

Coating: Aluminium and protective film