120mm SPHERICAL PRIMARY MIRROR FOR ASTRONOMICAL REFLECTOR TELESCOPE For Sale
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120mm SPHERICAL PRIMARY MIRROR FOR ASTRONOMICAL REFLECTOR TELESCOPE:
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.
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