Stellarvue Non-Rotating Helical Focuser for 50mm Finderscopes -F050HNR

  • Turns Finders into Guiders
  • Focus Your Finder
  • Fits 50 mm Stellarvue Finders
  • Inverted Image


  • Sale
  • Regular price $69.00

More on the Way* We do not currently have this in stock, but is a common item we carry. More are likely on the way as the manufacturer allows.
Add to Wishlist
Already have gear? Trade it in for cash or new equipment.

Accessories Added

OPT Telescope Expert

Want Help?

Ask Our Telescope Experts


Stellarvue Non-Rotating Helical Focuser for 50mm Finderscopes -F050HNR

This Non-Rotating Helical Focuser is used to convert a Stellarvue 50 mm right angle finderscope into a 50 mm straight-through finderscope. Now the image on your finderscope will be inverted and your finderscope can now be used as a guidescope. 

It is as easy to use as simply unthreading the right-angle prism assembly from the main tube and replace it with the Helical Focuser.

The SV-F050HNR features a 1.25-inch non-rotating helical focuser and includes a 10 mm (STE52) extension. 

This is the same focuser that is used on the Stellarvue SV-F050G, so it can also be used there as a guidescope as well.

The focuser has a standard 1.25-inch compression ring unit with an external M42 x .75 T-thread. So you can either use a guide camera's T-thread or a 1.25-inch nosepiece.



OPT Product Number: SV-F050HNR 



  • Stellarvue's Non-Rotating Helical Focuser for 50 mm Finderscopes
  • 10 mm Stellarvue Extension