New 135mm Astronomical Reflector Telescope SPHERICAL PRIMARY MIRROR- Plate Glass For Sale
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New 135mm Astronomical Reflector Telescope SPHERICAL PRIMARY MIRROR- Plate Glass:
135mm Primary SPHERICAL Mirror for Astronomical Reflector Telescope builder.
THESE ARE BRAND NEW SPHERICAL PRIMARY MIRRORS
Diffraction Limited L4 (1/4 wave in Sodium Light)
Aluminized(92%) and SiO(Quartz Overcoat)
Resolving Power(arc seconds): .97
FL (focal length) 1000mm Pre-Set Collimation Dot Hand Crafted and Ronchi Tested for high Reflectivity
Please see other listings for secondary mirrors for those that like to build their own telescopes.