Kson Short Tube ST80 – 1.25″ Focuser 400mm f/5 Mk II with Rings

Original price was: $289.95.Current price is: $239.95.


Astrodog Exclusive – Kson Short Tube ST80 – 1.25″ Focuser 400mm f/5 Mk II with Rings

We’ve listened to what you want, and had it manufactured according to our strict specifications.  Enjoy a great quality refractor at an affordable price – while they last!

Astro Dog Review – Saxon 804 80mm x 400mm refractor vs. Kson Short Tube ST80 – 1.25″ Focuser 400mm f/5 Mk II with Rings

Video will open in a new window
Having Trouble? Paste link into a browser window:

NEW Mk II Upgrades

  • Luxury 1.5″ metal focusing knobs allow easy focusing – even at f/5!  Thick knurl which makes it a pleasure to focus.
  • Most refractors have one or two screws which dig into the eyepieces / cameras.  We’ve upgraded the connector to a three screw compression ring system to securely hold heavier loadouts


  •  80mm Aperture
  • 400mm Focal Length
  • F/5
  • Achromatic, Doublet Refractor Design
  • Fully Coated, Cemented Lens with K9/F4 optical glass (Yes, we even tell you the glass type we used!)
  • Metal Dew Shield
  • Metal Finder Shoe
  • Beautiful, Pearl White Finish
  • Rings and Vixen Plate – The rings on these are something special.  The red deluxe rings were made with love and are fully servicable, 33% thicker and stronger than similar rings found on other scopes, and have extended knobs and grips which make tightening and detaching a breeze.

This model is suitable for use as a guider, a finderscope, or as a standalone widefield refractor.  It is fully compatible with the Kson Tracker, the KM MiniMount, as well as other mount systems which accept vixen style connections.

How does this unit compare with similar models?


Astro Has Lots of Other Astronomy Accessories Your Looking For – See Our Best Sellers Below

With Fast Shipping On Every Item, Free Gummi Bears and 30 day returns, Why Not?

Questions?  Call us on 1300 ASTRODOG or just use the form!

e.g. "Peter"

Additional information

Weight 2.5 kg
Dimensions 50 × 19 × 14 cm


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.