Bob's Knobs

Celestron SCT 8 EdgeHD Collimation knobs

(1 review) Write a Review
Your Price: $33.92
Celestron SCT 8 EdgeHD Collimation knobs
SKU:
C8edg
Adding to cart… The item has been added

Product Overview

Knobs: Black oxide steel (black) or stainless steel (silver), 12 mm (1/2 ) diameter
Threads: Black oxide or stainless steel

Notes:
  1. These knobs will fit only the Celestron 8 SCT with Fastar secondary and EdgeHD optics. These telescopes are marked EDGEHD OPTICS on the corrector ring. Do not use these knobs on the non-EdgeHD Fastar secondary; the screws on these knobs are too long. Be sure to check that the thread length on our knobs matches the thread length on the factory collimation screws.
  2. The factory dust cover will fit normally with Bob s Knobs installed.

Reviews

(1 review) Write a Review

1 Review Hide Reviews Show Reviews

  • 5
    Bob’s Knobs should be standard

    Posted by Craig Dilks on October 15, 2025

    Collimation is tricky enough so turning those little collimation screws with a screwdriver is just too much. These make collimation adjustments much easier. Highly recommended!

1 Review Hide Reviews Show Reviews

  • 5
    Bob’s Knobs should be standard

    Posted by Craig Dilks on October 15, 2025

    Collimation is tricky enough so turning those little collimation screws with a screwdriver is just too much. These make collimation adjustments much easier. Highly recommended!

!