Rainbow Astro RST-135E Mount: Lightweight Precision for Advanced Astronomy

Counterweight-Free Design: Innovative design that eliminates the need for counterweights, streamlining setup and usage.
Ultra-Lightweight and Portable: Weighs just 3.4kg and is compact enough to fit in one hand, ideal for frequent use and travel.
Impressive Payload Capacity: Despite its light weight, it can carry up to 13.5kg, with a maximum capacity of 18kg.
Advanced Strain Wave Gear: Utilizes strain wave gear (harmonic drive) instead of traditional worm gears, resulting in almost no backlash and no maintenance needs.
High-Resolution Renishaw Encoder: Built into the RA axis, achieving a remarkable periodic error of only ±2.5 arcseconds.
Autoguide-Free Operation: Particularly beneficial for those reluctant to use autoguide systems, with excellent tracking accuracy.
Convenient for Mobile Observing: Its lightweight and balance-insensitive nature make it perfect for both domestic and overseas observations.
Durable and Aesthetically Pleasing: Made from CNC machined aluminum alloy AL6061 used in aircraft, combining durability with an appealing machined surface.
Wireless Control Options: Features built-in WiFi for control via the SkySafari app, with ASCOM Driver compatibility for both WiFi and USB connections.
Built-In GPS and Home Sensor: Equipped with a GPS receiver for accurate positioning and a home sensor for maintaining Star Alignment data, ideal for remote observatories.
5-Year Warranty: Offers a five-year warranty, ensuring long-term reliability and user satisfaction.

Specifications

Mount

Specification
Mount type	Dual mount – German Equatorial, Alt-Azimuth
Reducer	Strain wave gear (Harmonic Drive)
Load Capacity	13.5kg(without counter weight), 18kg(with counter weight)
Recommend Telescope	8inch Reflector, 5inch Refractor
Weight	3.4kg
Volume	14.4 x 13.1 x 20.5 cm
Material	Aluminum alloy AL6061, Steel, Brass
Surface coating	Anodizing
Reducer size(RA)	Model No. 17 (Based on HDS)
Reducer size(DEC)	Model No. 14 (Based on HDS)
Motor	Swiss made Maxon DC Servo Motor
Latitude range	0 to 90 degrees
High resolution encoder	Built-in RA axis, Renishaw

Hand Controller

Specification
Max Slew Rate	1,800x (7.5deg/sec) – 16V DC
Input Power	DC 12V ~ 16V
Power Consumption(Tracking, 12V)	0.2A
Power Consumption (Slew, 12V)	1.0~2.0A
PC Connection	ASCOM Driver
GPS	Built-in (Hand Controller)
WiFi	Built-in (Hand Controller)
Home Sensor	Built-in
Compatibility	ASIAIR, StellarMate
Periodic error	±2.5arcsec (430sec)

Software and Docs

Manuals

Mount

Hand Controller

Software

FTDI USB Virtual Com Port(VCP) Drivers

Hubo-i Firmware Downloader

Most Recent Firmware hex file(Updated 4/6/22)

Ascom Driver

Country

Country

Rainbow Astro RST-135E Harmonic Mount

Country

Country