William Optics New Super ZenithStar 73 III f/5.9 OTA FPL53 Doublet APO 2.5" R&P Focuser

William OpticsSKU: A-Z73IIIRD

Color: Red
Sale price$986 CAD
Only 1 unit left



This model 73mm ZenithStar Doublet APO Refractor from William Optics boasts Ohara FPL-53 glass from Japan and a saddle handle bar that accepts Synta-style dovetails, such as the UniGuide guidescope or the Slide base guiding rings (not included). The ZenithStar 73 also comes with a 2.5" Rack & Pinion focuser and Dual Sided dovetail bar. The William Optics DSD 210 Plate has both a Vixen and Arca Swiss size at each end of the plate. The plate has two 1/4-20 threaded holes.

It works great with most cameras, camera lenses, and small scopes on either a Vixen-style mount or an Arca Swiss saddle.

William Optics ZenithStar 73 Refractor Specifications

  • Refractor Design: Apochromat (APO)
  • Focal Length: 430mm
  • Focal Ratio: f/5.9
  • Focuser: 2.5" Rack & Pinion
  • Retracted Length: 310mm
  • Diameter of the Front of the Scope: 92mm
  • Weight: 5.5 lbs.

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