in stock
in stock

TS-Optics MONORAIL 3" Dual Speed Focuser - M117x1 thread connection

instead 192,44 EUR
only 167,23 EUR
excl. VAT
excl. 4,65 € Shipping costs


TS-Optics MONORAIL 3" Dual Speed Focuser - M117x1 thread connection

This focuser is more stable and precise than standard Crayford focusers. We recommend the focuser also for astrophotography.

♦ Telescope connection: M117x1 thread (female) with 360° rotation.

♦ The focuser fits to all TS-Optics and Astro Tech RC telescopes from 10" aperture.

♦ Connection at eyepiece side: 2" and 1,25" receptacle with compression ring and female M69x1 thread for threaded adaptions.

♦ Short: Construction length from thread to the 2" connection only 83 mm

♦ 1:10 dual speed for accurate focusing

♦ Support via stainless steel bar - absolutely bending-resistant

♦ Locking of the drawtube exactly in the middle - definitely no tilting


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TS-Optics M69x1 extension tube 10mm - fitting to TS-Optics Flattener 2.5"

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