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William Optics

Guide Scopes & OAG 

A selection of guide scopes and OAG units designed to help your telescope track stars with extreme precision during long-exposure astrophotography

Guide Scopes
William Optics Slide-base UniGuide 50mm Scope (Gold)
$ 157.38

William Optics UniGuide 50mm Slide-Base Guide Scope with 1.25" RotoLock - Gold - M-G50PB-WG

  • Get in perfect focus with this high-quality William Optics Guide Scope.
  • 1.25-inch RotoLock design for smooth and accurate focusing.
  • This is the Gold version.
  • Focal Length: 200 mm (7.87")
  • Focal Ratio: f/4
  • Diameter: 50 mm
  • Total Guide Scope Length: 265 mm
  • Included: 1.25" RotoLock
  • Focusing: Front Focuser System w. Focus Lock Ring
  • Weight: 515g (1.14 lb)
Guide Scopes
William Optics Slide-base UniGuide 50mm Scope (Space Gray)
$ 157.38

William Optics UniGuide 50mm Slide-Base Guide Scope with 1.25" RotoLock - Space Gray - M-G50PB-WG

  • Get in perfect focus with this high-quality William Optics Guide Scope.
  • 1.25-inch RotoLock design for smooth and accurate focusing.
  • This is the Space Gray version.
  • Focal Length: 200 mm (7.87")
  • Focal Ratio: f/4
  • Diameter: 50 mm
  • Total Guide Scope Length: 265 mm
  • Included: 1.25" RotoLock
  • Focusing: Front Focuser System w. Focus Lock Ring
  • Weight: 515g (1.14 lb)
[WIL-M-G32PB-GD] William OpticsUniGuide 32mm Scope (Gold) WIL-M-G32PB-GD 1 UNITS LEFT
Guide Scopes
William OpticsUniGuide 32mm Scope (Gold)
$ 125.26

A premium, ultra-lightweight guide scope designed for seamless, ring-free integration with your astrophotography rig.

  • High-Precision Tracking: Fast f/3.75 optics ensure bright, pin-sharp stars for your guide camera.
  • Easy Focusing: Features a built-in adjustable dew shield mechanism with 25mm of travel for precise focus.
  • Universal Connection: Ready for M42 or 1.25" cylindrical cameras like ZWO Mini, QHY, and others.
  • Ultra-Light: At only 240g, it keeps your payload low without sacrificing stability.
Elegant Gold Edition: Matches perfectly with WO Gold/Grey telescopes. The slide-base fits directly into WO Saddle Handles (no rings required).
[WIL-M-G32PB-TG] William OpticsUniGuide 32mm Scope (Space Grey) WIL-M-G32PB-TG 3 UNITS LEFT
Guide Scopes
William OpticsUniGuide 32mm Scope (Space Grey)
$ 125.26

A premium, ultra-lightweight guide scope designed for seamless, ring-free integration with your astrophotography rig.

  • High-Precision Tracking: Fast f/3.75 optics ensure bright, pin-sharp stars for your guide camera.
  • Easy Focusing: Features a built-in adjustable dew shield mechanism with 25mm of travel for precise focus.
  • Universal Connection: Ready for M42 or 1.25" cylindrical cameras like ZWO Mini, QHY, and others.
  • Ultra-Light: At only 240g, it keeps your payload low without sacrificing stability.
Sleek Space Grey Edition: Matches perfectly with WO Space Grey or Red telescopes. The slide-base fits directly into WO Saddle Handles (no rings required).
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