Cloud Break Optics

RST-135 Robotic Mount

RST-135 Robotic Mount - Main image
$2891.1 $4190 In stock

Category: Mounts

You can take your dream shot from anywhere with this extremely portable mount. No backlash and NO need for counterweights!

Description

The RST-135 uses a new type of gear called a strain wave gear. Due to the strong force provided by the strain wave gear and motor, a counterweight is not needed. The mount weights only 3.3kg (7.27lbs), but can carry a payload up to 13.5kg (29.76lbs). Rainbow Astro calls this breakthrough mount a Weightless Mount. The volume and weight of the mount is no longer a problem when travelling for astrophotography.

NOW AVAILABLE IN MULTIPLE COLOR OPTIONS!  NOTE: Colors other than standard gray are a special order and will have an additional lead time.

Features

Compact and light

  • The mount weighs only 3.3kg (7.27lbs). You do not need a separate bag for the mount: Just put it in your backpack.

Equatorial / Alt-Az dual Mount

  • You can easily change between Equatorial mode and Alt-Az mode, allowing for both photographic and visual use of your instrument.

No counterweight needed

  • You do not need a counterweight to use the mount and it can carry a payload up to 13.5kg (29.76lbs).

Beauty of a machined product

  • Feel the beauty of a machined product. All parts of RST-135 are made by machining a solid block. The RST-135 is the perfect premium mount.

Strain wave gear

  • The strain wave gear is a new type of gear that is widely used in industrial robots. There is no backlash.

Built-in WiFi

  • This mount has built-in WiFi in the hand controller. You can control and auto-guide the mount without running a cable to your PC.

Built-in GPS receiver

  • The built-in GPS receiver eliminates the need to enter your location during each session or if you travel with the mount.

Built-in Home sensor

  • The home sensor finds the mechanical origin by itself. This is useful for remote observation.

Specifications

  • Mount Type
    • Equatorial / Alt-Az Dual Mount

  • Type of Gear
    • Strain Wave Gear
  • Payload
    • 13.5kg (30lbs) - No counterweight
    • 18kg (40lbs) – Using a counterweight
  • Slew Speed
    • 6º / Second
  • Latitude Range
    • 0º to 90º
  • Power Input
    • 12 to 16V DC

  • Power Consumption
    • 0.2A - Tracking, 16V 
    • 3A - Slewing, 16V
  • Weight
    • 3.3kg (7.3lbs)
  • Size(mm)
    • 130 x 120 x 190
  • Materials
    • AL 6061, Steel, Brass

  • ASCOM 
    • Supports ASCOM Drivers
  • Hand Controller Included
  • Additional Function
    • Built-in WiFi
    • Built-in GPS Receiver
    • Built-in Home Sensor
Before you pay

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Adam ★★★★★

I was blown away by how compact this is for a mount with no backlash—the strain wave gear makes polar alignment and tracking incredibly smooth. The lack of counterweights means I can grab it and walk to my car in one trip, which is a game-changer for my mobile sessions.

Alexander P. ★★★★★

Setting this up in my backyard was a breeze since there's no counterweight to fuss with, and the strain wave gear is completely silent during tracking. I've already gotten sharp 10-minute unguided subs that I never could have managed with my old mount.

Owen ★★★★★

Finally, a mount I can actually carry in my backpack without breaking my back. The no-counterweight design is a game-changer for quick setups in the field.