Knobs for CELESTRON 11” (28 cm) SCT

We offer knobs for all versions of the Celestron 11” f/10 Schmidt-Cassegrain secondary with either standard or metric collimation screws, including Fastar, non-Fastar, and EdgeHD versions. Select knobs for your telescope from the list below.

Special Note: The Celestron 11” SCT uses either standard 6-32 or metric M3 collimation screws. Allen and set-style factory collimation screws have standard threads. For Phillips collimation screws, most silver screws are standard and most black screws are metric. See our hints for more information.

Products

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KNOBS FOR CELESTRON 11 inch (28 cm) f/10 SCT WITH "TRIFID" FASTARâ„¢ SECONDARY HOUSING AND STANDARD COLLIMATION SCREW THREADS

Fits: All Celestron 11 inch (28 cm) f/10 SCT versions (metal or carbon fiber tube) with "Trifid" rotary cover Fastar secondary housing and standard collimation screw threads (not black Phillips). These knobs will also fit the C11 with Starizona Hyperstar. See Notes below. Knobs: Black plastic, 16 mm (5/8 inch) diameter Threads: Black anodized aluminum alloy


Our price: $20.00 (€17.40)
Quantity
KNOBS FOR CELESTRON 11 inch (28 cm) f/10 SCT WITH FLAT OR "TRIFID" FASTARâ„¢ SECONDARY HOUSING AND METRIC COLLIMATION SCREW THREADS (CPC 1100)
Fits: Celestron 11 inch (28 cm) f/10 SCT versions with flat or Trifid Fastar secondary housing and metric M3 screw threads (CPC 1100, Edge HD). See Notes below.
Knobs: Black-oxide steel, 12 mm (1/2 inch) diameter
Threads: Black-oxide steel

Our price: $24.00 (€20.88)
Quantity
KNOBS FOR CELESTRON 11 inch (28 cm) f/10 SCT WITH FLAT SECONDARY HOUSING AND STANDARD COLLIMATION SCREW THREADS (NOT FOR CPC 1100)
Fits: All Celestron 11 inch (28 cm) f/10 SCT versions (metal or carbon fiber tube) with flat secondary housing and standard 6-32 collimation screw threads (not for CPC 1100). See Notes below.
Knobs: Black plastic, 16 mm (5/8 inch) diameter
Threads: Black anodized aluminum alloy

Our price: $20.00 (€17.40)
Quantity