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: CNsec30FTFits: SkyWatcher Quattro 150 and 200 Newtonian telescope secondaryKnobs: Black plastic, 13 mm (1/2”) diameterThreads: Stainless steel ______________________________________B. Knobs for SkyWatcher Quattro 250 Newtonian Secondary Part: CNsec40 or CNsec45Fits: SkyWatcher Quattro 250 Newtonian telescope secondaryKnobs: Black plastic, 13 mm (1/2”) diameterThreads: Stainless steelNotes: 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. ______________________________________C. Knobs for SkyWatcher Quattro 300 Newtonian Secondary Part: CNsec35 or CNsec40Fits: SkyWatcher Quattro 300 Newtonian telescope secondaryKnobs: Black plastic, 13 mm (1/2”) diameterThreads: Stainless steelNotes: 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: CNsec30FTFits: SkyWatcher Quattro 150 and 200 Newtonian telescope secondaryKnobs: Black plastic, 13 mm (1/2”) diameterThreads: Stainless steel B. Knobs for SkyWatcher Quattro 250 Newtonian Secondary Part: CNsec40 or CNsec45Fits: SkyWatcher Quattro 250 Newtonian telescope secondaryKnobs: Black plastic, 13 mm (1/2”) diameterThreads: Stainless steel C. Knobs for SkyWatcher Quattro 300 Newtonian Secondary Part: CNsec35 or CNsec40Fits: SkyWatcher Quattro 300 Newtonian telescope secondaryKnobs: Black plastic, 13 mm (1/2”) diameterThreads: Stainless steel In the box Selected knobs (3) Manual & Warranty English Manual French Manual
