Stellarvue F50 50mm Guidescope w/Straight-Through Helical Focuser

Stellarvue F50 50mm Guidescope w/Straight-Through Helical Focuser
Item # SV-F50G
1 Questions(s)

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  • The Stellarvue F50G Guidescope has an aperture of 50 mm, a focal length of 212 mm, and comes with a 1.25" non-rotating helical focuser.
  • The focuser sports M42x.75 threads to accept a t-ring or 1.25" nosepiece.
  • Convert your guidescope to a straight-through finder with the included 10 mm extension and an optional 1.25" reticle eyepiece!
  • Please Note: This guidescope is not designed to accept a diagonal.


Stellarvue F50 Guidescope w/Straight-Through Helical Focuser

The Stellarvue F50G Guidescope has a focal length of 210 mm and sports an objective that is finished off with a broadband FMC coating for beautiful clarity and contrast. The F50 Guidescope is similar to the Stellarvue 50 mm finderscope, except it is designed to accept an M42x.75 threaded t-ring or 1.25” nosepiece rather than a slip-fit diagonal.

The Stellarvue F50G comes with a 10 mm threaded extension, which allows you to convert the optical tube into a straight-through finder. Simply install the extension between the guidescope’s helical focuser and the main tube and then add the 1.25” standard or reticle eyepiece of your choice. See the photograph to the left for a guide regarding the installation of the extension.

The 1.25” non-rotating helical focuser is lubricated to give you a smooth focusing experience. The F50G will fit Stellarvue’s standard 50 mm ring systems, creating a nice guiding system for your refractor or other telescope.

Stellarvue F50G Guidescope Specifications

  • Aperture: 50 mm
  • Focal Length: 210 mm
  • Focuser: 1.25” non-rotating Helical
  • Weight: 18 ounces
  • Diameter of Tube: 54.5 mm
  • Diameter of Dew Shield: 58 mm
  • Tube Length: 9-1/4” - 9-1/2”


Additional Information

Additional Information

Manufacturer Stellarvue
Warranty 2 Year Warranty
Included Items

Included Items

  • Stellarvue F50 Guidescope
  • 1.25" Helical Focuser
  • 10 mm Extension
Questions & Answers

Product Questions

Hi, is there mount thread 1/4 inch on this guidescope?
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