Optical Tube Assembly

Optical Tube Assembly

Optical Tube Assembly

12 products - next page link at the bottom

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  • Sky-Watcher Explorer 150P

    Price £249.00

    The new Skywatcher Explorer-150P features a 1.25" 10:1 ratio focuser for enhanced focus control and a shorter tube length with the secondary mirror positioned closer to the primary mirror for more convenient prime-focus photography

  • A Dual-Speed 10:1 ratio focuser is included for excellent focusing precision. Also the tube length has been slightly shortened to optimise performance for prime-focus photography

  • Sky-Watcher Quattro 300p f4

    Price £1,059.00

    Fast f/4 focal ratios, have been specially designed for high quality astrophotography with short exposure times. They are of course also fine telescopes for visual observations

  • Sky-Watcher Quattro 250p

    Price £749.00

    The new QUATTRO series with their fast f/4 focal ratios, have been specially designed for high quality astrophotography with short exposure times. They are of course also fine telescopes for visual observations. Tube interiors have knife-edge ray-traced baffles.

  • QUATTRO series with their fast f4 focal ratios, have been specially designed for high quality astrophotography with short exposure times

  • 150mm (6") f/1200 Parobolic Newtonian Reflector Optical Tube Assembly
    0.5mm ultra-thin secondary mirror supports to reduce diffraction spikes and light loss
    High quality Paraboloidal primary mirrors to eliminate spherical aberration.

  • The new Sky-Watcher EXPLORER-130PDS Newtonian Reflector incorporates the same superb mirror-set as the Explorer-130P Black Diamond Series. A Dual-Speed 10:1 ratio focuser is now included for excellent focusing precision.

  • The Sky-Watcher EXPLORER-150PDS Newtonian Reflector incorporates a Dual-Speed 10:1 ratio focuser for excellent focusing precision