You don’t need counterweights anymore.
You will take your dream shot anywhere if you have RST-135.
Mount TypeEquatorial / Alt-Az Dual Mount
Type of GearStrain Wave Gear
Payload13.5kg (30lbs) - No need counterweight
18kg (40lbs) – Use counterweight
Slew Speed6º / Second
Latitude Range0º to 90º
Power Input12 to 16V DC
Power Consumption0.2A - Tracking, 16V
3A - Slewing, 16V
Size(mm)130 x 120 x 190
MaterialsAL 6061, Steel, Brass
ASCOMSupport ASCOM Driver
Additional FunctionBuilt-in WiFi
Built-in GPS Receiver
Built-in Home Sensor
The RST-135 uses a new type of gear, strain wave gear. Due to the strong force of the strain wave gear and the motor, counterweight is not needed. The mount weights only 3.3kg, but you can use a 13.5kg telescope. We call this breakthrough mount a Weightless Mount. The volume and weight of the mount is no longer a problem in a trip for astrophotography.