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


Cassini PM-135 - Telescope PRIMARY MIRROR : 135mm
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Cassini PM-135 - Telescope PRIMARY MIRROR : 135mm:
$39.99

ONLY THIS ONE...PERFECT ONES ARE LISTING FOR AN ADDITIONAL $10

USED AT A TRADE SO SLIGHT IMPERFECTIONS... NO DEEP SCRATCHES THAT WOULD AFFECT ITS USE IN BUILDING A TELESCOPE


SPHERICAL PRIMARY MIRRORS

135mm Diameter

Diffraction Limited L4 (1/4 wave in Sodium Light)

Plate Glass

Aluminized(92%) and SiO(Quartz Overcoat)

Resolving Power(arc seconds): .97

APPROXIMATELY 12mm THICK

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.

FREE ship rate is for within the Continental U.S.

Thanks, Mary



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