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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Condition: This is a used SkyGuider Pro mount head package with iPolar
Optical Design Schmidt-Cassegrain Optical Tube Info: N
featuring a robust metal housing and precise angular lines — a perfect fusion of form and function
Customers in Canada or Mexico: Please complete the Camera Request form to purchase the camera for self-installation or choose our Premium Installation Serviceto have Celestron technicians perform the upgrade and recalibration
browse through the size options and choose the filter with an inside dimension that’s slightly larger than your viewing device’s outer diameter
UltraCat 131 Monochrome Camera Condition: This is a usedExpected availability in August 2026. Contact us to pre order. Technical Highlights The Ultra Cat 131 is William Optics most advanced astrograph to date, featuring a massive 60mm image circle to support medium format and full frame sensors: Optics: 5 Element Advanced Petzval (Super ED & Lanthanum glass). Aperture: 131mm Focal Ratio: $f 4. 9 Focal Length: 648mm. Focuser: Patented WIFD (Internal Focuser) to eliminate vignetting and tilt. Included:
