Pay in 4 interest-free payments of $674.75 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Also brings great color and clarity to every scene with comfortable full field view
featuring a robust metal housing and precise angular lines — a perfect fusion of form and function
Explore Scientific 2" rack-and-pinion focuser comes with 2 extension tubes
keeping the lens below the dew point longer and preventing dew from forming on the lens
UltraCat 131 Monochrome Camera Also brings great color andExpected 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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