**Sirius Optics is still open for business. As the situation is changing on a daily basis, check our website for the most up to date information.**

Visit this page for updates on the measures we are taking to combat COVID-19.

Starting Monday 27th April we will be introducing new shop hours and will open from 10am to 5.30pm Monday to Friday and from 9am to 2pm Saturdays. Closed Sundays.

Bobs Knobs for Meade Lightbridge (GSO) 10 f/5 Primary

More Views

Bobs Knobs for Meade Lightbridge (GSO) 10 f/5 Primary
AUD $55.00

Availability: In Stock

Part: MLB10pri
Fits: Meade Lightbridge, Apertura, and GSO 10” (25 cm) f/5 telescopes with factory collimation screws. Will not fit scopes with factory collimation knobs.

OR Download PDF


Primary collimation

  • Knobs: Black plastic, 30 mm (1-1/4”) diameter, 5-point fluted
  • Threads: Plated steel

Primary Lock

  • Knobs: Black plastic, 25 mm (1”) diameter, knurled
  • Threads: Stainless steel


  1. If your primary looks different from our photograph, or already has factory collimation knobs, these knobs will not fit.
  2. The telescope optical tube assembly will clear the rocker box with primary knobs installed.
  3. Primary adjustment knobs are slightly larger than shown in the photograph and do not have an orange insert.

Additional Information

Specifications No

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.