William Optics

Guide Star 61 (Soft Carry Case included)


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  • $399.00
  • Regular price $438.00

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The William Optics GuideStar 61 lens is the same as ZenithStar 61, but with a draw tube in place of the rack and pinion focuser. It also includes a finder mount rail in place of the standard vixen rail. The main purpose of Guide Star61 is as a guide scope for astrophotography. 


Can be paired with the Flat61 field flattener for use as an imaging telescope.

  • Supports QHY, SBIG, ZWO, and other 1.25" cylinder-type guiding cameras
  • Guide scope provides a straight through viewing with an inverted image.
  • High-quality 61 mm objective.
  • Perfectly suited for William Optics or other refractors with vixen finder mount shoe.
  • Focusing is by use of an extension tube at the back, and a fine focus at the front behind the dew shield.
  • Focal Length:  360mm
  • Aperture: f/5.9
  • Weight:  1.4 kg
  • tube length: 340mm