Pay in 4 interest-free payments of $674.75 Learn more
Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
Compact & Collapsible: At only 43 cm closed
keeping the lens below the dew point longer and preventing dew from forming on the lens
Optical Design Schmidt-Cassegrain Optical Tube Info: N
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 Compact & Collapsible: At onlyExpected 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: $f 4. 9 Focal Length: 648mm. Focuser: Patented WIFD (Internal Focuser) to eliminate vignetting and tilt. Included:
US$ 117.47
US$ 25.00
US$ 117.47
US$ 1280.00
US$ 134.50
