Cassini PM-135 - Telescope PRIMARY MIRROR : 135mm For Sale
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Cassini PM-135 - Telescope PRIMARY MIRROR : 135mm:
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.
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