EQ8-RH mount head without tripod The EQ8-RH is a heavy-duty GoTo German equatorial mount rated for a 50 kg astrophotography payload excluding counterweights. This is the mount configuration without a tripod.
Manufacturer model: EQ8-RH mount head without tripod · Specifications checked against manufacturer data on 2026-11-04
The EQ8-RH is a heavy-duty GoTo German equatorial mount rated for a 50 kg astrophotography payload excluding counterweights. This is the mount configuration without a tripod.
The 0.9° hybrid stepper motors use 256 microsteps and 435:1 worm drives. Maximum slewing speed is 3.7°/s. Sidereal, solar and lunar tracking, selectable autoguide rates and 200-segment permanent PEC are documented.
The RH model adds a Renishaw high-resolution incremental encoder on the RA axis, specified at 11,840,000 counts per revolution or approximately 0.11 arcsecond. It reduces the influence of mechanical periodic error during tracking; it is not a second-axis encoder system.
The head weighs 25.8 kg; the counterweight rod weighs 2.6 kg and the documented counterweights are two 10 kg units. Provide a compatible tripod or permanent pier separately. Latitude adjustment covers 15–65° and azimuth adjustment ±10°. Internal auxiliary power/USB connections help route telescope cables.
Use the manual’s 11–16 V DC, 55 W supply specification, with higher voltage preferred within that range. SynScan hand control and SynScan Pro provide GoTo operation with a 42,000+ object catalogue.
Sky-Watcher manufacturer documentation
Exact R/RH and tripod distinction retained. Encoder values apply only to RH and are distinct from motor resolution and pointing accuracy. Manual weights exclude different components as labelled.
| Counterweight rod weight (kg) | 2.6 |
|---|---|
| Tripod included | No |
| Worm gear ratio | 435 |
| Drive counts per revolution | 44544000 |
| Ra encoder | Renishaw high-resolution incremental encoder |
| Ra encoder counts per revolution | 11840000 |
| Ra encoder resolution (arcsec) | 0.11 |
Data sheet
EQ8-RH mount head without tripod The EQ8-RH is a heavy-duty GoTo German equatorial mount rated for a 50 kg astrophotography payload excluding counterweights. This is the mount configuration without a tripod.
Manufacturer model: EQ8-RH mount head without tripod · Specifications checked against manufacturer data on 2026-11-04
