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250mm (10 inch) Glass Parabolic Telescope Primary Mirror And 60mm secondary flat

10 inch, f5 Newtonian telescope mirror. Focal length 51.5 inches. With 2.25 inch flat mirror. Primary mirror has been cleaned ready for re-aluminising. Secondary would probably benefit from same, though is still perfectly useable. The item “250mm (10 inch) Glass Parabolic Telescope Primary Mirror And 60mm secondary flat” is in sale since Monday, November 5, […]

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