Short Axis Secondary Mirror for DIY Newtonian Reflecting Astronomical Telescope

Auxiliary Mirror Size Available: 20/25/30/35/40/42/50/54/70. Oblique Mirror Flat Mirror Elliptical Plane Mirror. Type: Elliptical Plane Mirror. Coating: Aluminum Reflection + Protective Film. If item is defective after 3 months, you can still send it back to us.

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