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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
Optical Design Schmidt-Cassegrain Optical Tube Info: N
Mount: Skywatcher AZ-EQ5GT
Compact & Collapsible: At only 43 cm closed
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
keeping the lens below the dew point longer and preventing dew from forming on the lens
UltraCat 131 Monochrome Camera Optical Design Schmidt-Cassegrain Optical TubeExpected 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:
