Astronomical Telescope 35mm-100mm Reflective Telescope Secondary Mirror

Type: Elliptical Plane Mirror
Minor axis: refers to the length of the short side diameter
20mm minor axis secondary mirror, 20mm short side length, surface aluminized film and protective film, suitable for use with 76mm caliber reflective primary mirror.
25mm minor axis secondary mirror, 25mm short side length, surface aluminized film and protective film, suitable for use with 114mm diameter reflective primary mirror.
35mm minor axis sub-mirror, short side length 35mm, surface aluminized film and protective film, suitable for use with 127mm, 133mm, 135mm, 150mm, aperture reflector primary mirror.
40mm minor axis secondary mirror, 40mm short side length, surface aluminized film and protective film, suitable for use with 127mm, 133mm, 135mm, 150mm, aperture reflector primary mirror.
70mm minor axis sub-mirror, short side length 70mm, surface aluminized film and protective film, suitable for use with 203mm caliber reflector main mirror

Auxiliary Mirror Size Available: 20/25/30/35/40/42/50/54/70

Tolerance: ±0.5

Surface Accuracy PV: 1/4-1/6

Coating: Aluminum Reflection + Protective Film

Package includes: 1 piece. According to your choice.
Note:
The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.