The knobs below will fit the Starmaster11", 12.5”, and 14.5” secondary, which is characterized by four collimation screws instead of the usual three. Price is for a complete set of knobs.
A. Knobs for Starmaster 11" 4-Screw Secondary
Part: SMsec1
Fits: Starmaster 11" secondary
Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- Four knobs are included with this kit.
- This secondary comes from the factory with four headless set screws for adjusting collimation.
- Knobs are positioned above the secondary spider.
$27.95
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B. Knobs for Starmaster 11" 3-Screw Secondary
Part: SMsec1a
Fits: Starmaster 11" 3-screw secondary
Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- These knobs will fit the older Starmaster 11" with the 3-screw secondary.
- This secondary comes from the factory with headless set screws for adjusting collimation.
$27.95
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C. Knobs for Starmaster 12.5" & 14.5" 4-Screw Secondary
Part: SMsec2
Fits: Starmaster 12.5" and 14.5" secondary
Knobs: Black plastic, 16 mm (5/8”) diameter
Threads: Stainless steel
Notes:
- Four knobs are included with this kit.
- 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.
- Knobs are positioned below the secondary spider.
$27.95
