The knobs below will fit the Starmaster 12.5” and 14.5” secondary, which is characterized by four collimation screws instead of the usual three.

A. Knobs for Starmaster 12.5 & 14.5 Secondary

Part: SMsec
Fits: Starmaster 12.5 and 14.5 secondary

Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel

  1. Four knobs are included with this kit.
  2. These knobs will fit the AstroSystems 2.0 (used on the Starmaster 12.5) and AstroSystems 2.14 (used on the Starmaster 14.5) secondary assemblies. Both of these secondaries come from the factory with headless set screws for adjusting collimation.