Bob's Knobs for Sky Watcher Quattro Newtonian Secondary Mirror

Bob's Knobs for Sky Watcher Quattro Newtonian

We offer knobs for the SkyWatcher Quattro Newtonian secondary. The Quattro primary is already equipped with factory collimation knobs. Select the type of knobs for your telescope from the list below. Price is for a complete set of knobs.

A. Knobs for SkyWatcher Quattro 150 and 200 Newtonian Secondary

Part: CNsec30FT
Fits: SkyWatcher Quattro 150 and 200 Newtonian telescope secondary

Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

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B. Knobs for SkyWatcher Quattro 250 Newtonian Secondary

Part: CNsec40 or CNsec45
Fits: SkyWatcher Quattro 250 Newtonian telescope secondary

Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

Notes:

1. Order knobs with a screw length (40 or 45mm) sufficient for the knobs to clear the secondary housing and still allow the dust cover to fit without contacting the knobs. The 40mm screw length is the most common.

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C. Knobs for SkyWatcher Quattro 300 Newtonian Secondary

Part: CNsec35 or CNsec40
Fits: SkyWatcher Quattro 300 Newtonian telescope secondary

Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

Notes:

1. Order knobs with a screw length (35 or 40mm) sufficient for the knobs to clear the secondary housing and still allow the dust cover to fit without contacting the knobs. The 35mm screw length is the most common

Technical Specifications

Please check the needed Lenght Size Here

A.  Knobs for SkyWatcher Quattro 150 and 200 Newtonian Secondary

Part: CNsec30FT
Fits: SkyWatcher Quattro 150 and 200 Newtonian telescope secondary

Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

B. Knobs for SkyWatcher Quattro 250 Newtonian Secondary

Part: CNsec40 or CNsec45
Fits: SkyWatcher Quattro 250 Newtonian telescope secondary

Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

C. Knobs for SkyWatcher Quattro 300 Newtonian Secondary

Part: CNsec35 or CNsec40
Fits: SkyWatcher Quattro 300 Newtonian telescope secondary

Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

In the box

Selected knobs (3)

Manual & Warranty

English Manual

French Manual