Equipment / SFAAA Loaner Scope Program /
William Optics ZenithStar 66 PATRIOT Edition

The William Optics ZenithStar 66 APO OTA is doublet, air-spaced APO telescope. This small, portable scope can be used on its own or as a piggyback guide scope. The lens design offers color-free, high-contrast images that are sharp to the edge of the field. It includes the following accessories:

  • 35mm Sirius Plossl eyepiece
  • 25mm Sirius Plossl eyepiece
  • 12.5mm Sirius Plossl eyepiece
  • Basic Alt/Az Tripod
  • Messier Finder Chart w/telrad overlays
  • OTA/Eyepiece Carring case

Specifications:

  • Type: Refractor
  • Mount: Alt-Az (Camera Tripod)
  • Focal Length(F): 388mm 15.3in
  • Focal Ratio(f): 5.9
  • Minimum Magnification: 36X
  • Maximum Magnification: 300X
  • Limiting Stellar Magnitude: 14.7
  • Resolving Power: .46arc-sec
  • Optical Tube Weight: 3.5lbs

William Optics PATRIOT Refractor

Eyepiece Info:

  • 32mm Focal Length
  • Magnification — 37.5X
  • Apparent FOV — 52°
  • Actual FOV — 1.39°

  • 25mm Focal Length
  • Magnification — 48X
  • Apparent FOV — 52°
  • Actual FOV — 1.08°

  • 12.5mm Focal Length
  • Magnification — 96X
  • Apparent FOV — 52°
  • Actual FOV — .54°

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