Short Axis Secondary Mirror 25mm 30mm 35mm 42mm 50mm 54mm 70mm for Telescope

Short Axis Secondary Mirror 25mm 30mm 35mm 42mm 50mm 54mm 70mm 114 203 Newton Reflector Telescope Elliptical Oblique Sub-mirror Newtonian Telescope Secondary Mirror Type: Elliptical Plane Mirror Auxiliary Mirror Size Available: 20/25/30/35/40/42/50/54/70mm for choosing Tolerance: ±0.5 Surface Accuracy PV: 1/4-1/6λ Coating: Aluminum Reflection + Protective Film 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 secondary 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 reflective primary mirror Package: 1 PC Short Axis Secondary Mirror