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TS-Optics Dual-Speed 2" UNC V-Power Crayford Focuser with M90 Thread for RC Telescopes

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1.30 kg
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including VAT 20.00 % ( £43.32 )


TS-Optics Dual-Speed 2" UNC V-Power Crayford Focuser with M90 Thread for RC Telescopes

  • High-quality 2" focuser for astrophotography and visual observation with Ritchey-Chrétien telescopes - holds acessories up to 6 kg.
  • Oversized ball bearings and V2A stainless steel bearing surface for maximal load with smooth adjustment
  • 2" and 1.25" clamping by brass compression ring
  • D=65 mm connection thread for threaded adaptions for astrophotography
  • Dual speed with gear wheel for motor focus - friction cluth integrated - motor focus is optional
  • Trouble-free adaption to TS-Optics, GSO, AstroTec.. RC telescopes via the M90x1 connection thread (female) at the telescope side
  • Minimal height with base is 91 mm
  • Drawtube travel is 30 mm
  • Motorized focusing is possible - see optional accessories

TS UNCN2M90 V-Power 2" Crayford Focuser for RC telescopes

The TSUNC2M90 is a high quality focuser for highest accuracy. It holds heavy accessories and is designed for astrophotography and demanding observation. The short length and the excellent craftmanship makes this focuser one of the best in its class.

The advantages and features of the TSUNC2M90 focuser:

  • Besides the 2" and 1.25" compression rings, the focuser also provides a male 65 mm thread for threaded adaptions. That is important mainly for astrophotography.
  • With base, the focuser is only 91 mm heigh, thus you can reach the focus problem-free with any RC telescope.
  • The focuser fits to all RC telescopes with the M90 connection thread and with the connection adapter to M117 (TSM117-M90) also to all larger RCs of at least 10" aperture.
  • You can use the full extent of the drawtube travel of 30 mm with any RC.
  • Strengthened ball bearings and a V2A stainless steel bearing surface offer maximum stiffness and full functionality even after many years of use where aluminium slowly rubs off.
  • The 1:10 transmission has professional quality and consists also of V2A and hardened steel.
  • Massive steel rails are integrated into the drawtube as counter bearing for the ball bearings for smooth operation.
  • Drag can be adjusted by a friction screw. Locking the focuser becomes obsolete, as the focuser holds exectly the position which is set, even at high load. Nevertheless, a locking screw (knurled screw) is also provided.
  • The steel parts and the gears are designed for long-term operation under high loads, in particular for astrophotography. The stainless steel ball bearings run on surfaces which are also made of stainless steel. Thus nothing can press into soft aluminium.
  • The drawtube is provided with anti-reflex ridges for enhancing contrast.
  • A cogwheel transmits the motion of the optional TSACUMOTORFOK motor focus. However, a friction clutch allows for manual operation. Power is transmitted through the dual speed gear, thus exact focusing also by motor is ensured.
Type: Dual Speed Crayford Focuser
Drawtube travel: 30 mm
Shortest height: 91 mm with retracted drawtube
Weight: 1000 grams
Drawtube support: Crayford type with 4 strengthened ball bearings which are adjustable
Drawtube: equipped with anti-reflex ridges
Inner diameter: suitable for 2" accessories without bottleneck
Connection thread: 65 mm thread (male) for threaded adaptions

What's in the box:

  • UNCN2 - TS UNC RC focuser with Reduction adapter from 2" to 1.25"
  • M90-UNCN2 - RC Adapter (M90)

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