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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Explore Scientific 2" rack-and-pinion focuser comes with 2 extension tubes
Mount: Skywatcher AZ-EQ5GT
Also brings great color and clarity to every scene with comfortable full field view
Optical Design Schmidt-Cassegrain Optical Tube Info: N
71M-Effective Pixel Color CMOS Image Sensor (official description from Sony site)
UltraCat 131 Monochrome Camera Explore Scientific 2" rack-and-pinion focuserExpected 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:
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