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Bobs Knobs Collimation Thumbscrews

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Fits: Celestron 8 (20 cm) f/10 SCT with orange optical tube and factory set-style collimation screws.
Knobs: Black plastic, 13 mm (1/2) diameter
Threads: Black anodized aluminum alloy

Bobs Knobs Celestron 8'' Pre 1980 Orange Tube Collimating Thumbscrews

ONLY £20.95

Fits: Celestron 9.25 (23.5 cm) f/10 SCT versions with "Trifid" Fastar secondary housing
Knobs: Black plastic, 9.5 mm (3/8) diameter
Threads: Stainless steel

Bobs Knobs Celestron 9.25'' SCT With Fastar Collimating Thumbscrews

ONLY £20.95

Fits: Celestron PowerSeeker 127 telescopes.
Knobs: Black plastic, 16 mm (5/8) diameter
Threads: Stainless steel

Bobs Knobs Celestron Powerseeker 127 Secondary Collimating Thumbscrews

ONLY £20.95

Fits: Celestron Starhopper (6, 8, 10, 12) Newtonian telescopes.
Knobs: Black plastic, 13 mm (1/2) diameter
Threads: Stainless steel

Bobs Knobs Celestron Starhopper Secondary Collimating Thumbscrews

ONLY £20.95

Fits: Meade Lightbridge telescopes (8, 10, 12, 16)
Knobs: Black plastic, 13 mm (1/2) diameter
Threads: Stainless steel

Bobs Knobs Meade Lightbridge Secondary Collimating Thumbscrews

ONLY £20.95

Fits: Celestron C6-N/NGT, C8-N/NGT, and C10-N/NGT Newtonian telescopes.
Primary collimation
Knobs: Black plastic, 16 mm (5/8) diameter
Threads: Stainless steel

Bobs Knobs Celestron C6N, C8N, C10N Primary Mirror Collimating Thumbscrews

ONLY £25.95

Fits: Celestron PowerSeeker 127 telescopes.
Primary collimation
Knobs: Black plastic, 16 mm (5/8) diameter
Threads: Stainless steel

Bobs Knobs Celestron Powerseeker 127 Primary Collimating Thumbscrews

ONLY £25.95

Fits: Meade 10 inch (25 cm) f/6.3 SCT versions (2120, LX10, LX50, LX100, LX200) which are marked f/6.3 WIDE-FIELD on the corrector ring
Knobs: Stainless steel, 19 mm (3/4 inch) diameter
Threads: Stainless steel

Bobs Knobs Meade 10'' f/6.3 Widefield Collimating Thumbscrews

ONLY £25.95

Fits: Meade 16 (41 cm) f/10 SCT versions with three screws on the secondary housing
Knobs: Stainless steel, 19 mm (3/4) diameter
Threads: Stainless steel

Bobs Knobs Meade 16'' 3 Screw Secondary Collimating Thumbscrews

ONLY £25.95

Fits: Meade 16 (41 cm) f/10 SCT versions with six screws on the secondary housing. (Includes LX200ACF) The inner screws are for collimation.
Knobs: Stainless steel, 19 mm (3/4) diameter
Threads: Stainless steel

Bobs Knobs Meade 16'' 6 Screw Secondary Collimating Thumbscrews

ONLY £25.95
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Page 4 of 5:    47 Items