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 bar and counterweight are available to support higher payloads up to 18 kg.

Please note the RST-135 is not supplied with a telescope saddle. We strongly recommend that customers also purchase the optional Rainbow Astro Vixen Type Saddle for RST Harmonic Drive Mounts.

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