Manufacturer: Rainbow Astro
Product number: MNT000700BL

EUR 5.703,00

incl. 19 % VAT (DE)  
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Rainbow Astro RST-135 GoTo Mount
This mount uses sophisticated technologies for offering unique features:

Lightweight with only 3.3 kg
Although the load capacity is 13.5 kg (maximum 18 kg), the weight of the mount is only 3.3 kg. It fits in one hand, so you don´t need a separate large bag for this. The lighter the mount, the greater the frequency of use.

Counterweights not required
Counterweights not required up to 13.5 kg. It is especially convenient for domestic mobile observation as well as overseas expedition observation.

Freed from balancing
The performance of the worm gear mount is sensitive to the balance, but the RST-135 is not. No need to rebalance even if you change the eyepiece or camera.

Strain Wave Gear (Harmonic Drive)
Instead of worm gears, a new type of reducer called strain wave gear (harmonic drive) is used. Almost no backlash and no maintenance is required. As it is widely used in industrial robots, it is very durable

CNC Machining
CNC machined aluminum alloy AL6061 is used for aircraft. That´s why it´s small, light and stiff. The beauty of the machined surface increases the collection value.

WiFi is built in. You can control the mount via the SkySafari app on your smartphone. The Ascom driver can be connected via WiFi as well as USB. GOTO and AutoGuide are now wireless.

GPS Receiver
GPS receiver is built in. The position and time of the observer can be entered accurately and conveniently.

Home Sensor
There is a built-in home sensor to find the mechanical origin. This is useful for permanently using Star Alignment data. Build an ultra-small remote observatory with the RST-135E mount.

The manufacturer has created a manual with helpful information, for example about the connection plates for telescope and tripod, as PDF: rst-135-manual.pdf

There is also a manual for the hand controller as PDF: rst-135-hubo-i-manual.pdf

Rainbow Astro has published a few helpful videos, showing various aspects of this mount:

Unboxing from a small packet:


How a strain wave gear works:

Autoguiding performance:

Mount type:Dual mount - German Equatorial, Alt-Azimuth
Load capacity:13.5 kg (without counterweight), 18 kg (with counterweight)
Recommended telescope:8 inch reflector, 5 inch refractor
Motors:Swiss made Maxon DC servo motor
Gears:Strain wave gear (Harmonic Drive)
Gear size RA:Model No. 17 (based on HDS)
Gear size DEC:Model No. 14 (based on HDS)
Max slew rate:1,800x (7.5 deg/sec) at 16 V DC
GPS:Built-in (hand controller)
WiFi:Built-in (hand controller)
Home sensor:Built-in
PC connection:ASCOM Driver
Compatibility:ASIAIR, StellarMate
Input power:DC 12 V to 16 V
Power consumption tracking (12 V):0.2 A
Power consumption slewing (12 V):1.0 A to 2.0 A
Latitude range:0 to 90 degrees
Tripod connection:Flat surface with 2 M8 threads at 45 mm distance (hole center to hole center)
Material:Aluminum alloy AL6061, steel, brass
Surface coating:Anodizing
Volume:14.4 x 13.1 x 19.5 cm
Weight:3.3 kg
RST-135 mount
Hand controller (Hubo-i SE)
Cable for hand controller
USB cable
Power cable (5.5×2.1 mm DC)
Adapter for camera tripod (3/8" thread)
Adapter for PoleMaster
Soft case for mount
4 mm hex wrench

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