RST-135 Compact Harmonic Drive Telescope Mount Head

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RST-135 Compact Harmonic Drive Telescope Mount Head

SKU: RBA-MNT000700

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Out of Stock (Can be Backordered)

Rainbow Astro’s RST-135 equatorial mount is based on innovative Harmonic Drive technology. Harmonic Drive technology results in a small light weight mount with an extremely high carrying capacity. The RST-135 weighs only 3.3 kg and is very small and light, but it can carry a payload up to 13.5 kg without using a counterweight. In addition, Harmonic Drive technology produces zero backlash allowing precision auto-guiding.

An optional counterweight kit is available to support Higher payloads up to 18 kg.

The RST-135 is your ideal astro-travel companion. 


  • Mount Type: Equatorial / Alt-Az Dual Mount
  • Type of Gear: Strain Wave Gear
  • Payload: 13.5kg (30lbs) – No need counterweight, 18kg (40lbs) – with counterweight
  • Slew Speed: 6º / Second
  • Latitude Range: 0º to 90º
  • Power Input: 12 to 16V DC
  • Power Consumption: 16V 0.2A – Tracking, 3A – Slewing,
  • Weight: 3.3kg (7.3lbs)
  • Size(mm): 130 x 120 x 190
  • Materials: AL 6061, Steel, Brass
  • ASCOM: Support ASCOM Driver
  • Hand Controller: Included
  • Additional Function: Built-in WiFi, Built-in GPS Receiver, Built-in Home Sensor

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