Sky Watcher EQ8-RH GoTo Mount

SKU: SWEQ8-RH-NOPIER Categories: ,

The Skywatcher EQ8-RH takes a step further with all the listed features of the EQ8-R but adds a higher level of precision. The RH (H for High Resolution)

This RH model features an on-Axis Renishaw TONic incremental, 11.8 million tick, encoder on the RA axis which allows the mount to have extremely precise tracking and guiding for long exposure imaging.

With the encoder built onto the RA axis this removes periodic error to nearly zero in RA with an accuracy of 0.11 arc-seconds!

The EQ8-RH offers a pro level mount for the serious astro imager. 

Mount only, no pier included.

Key features:

  • Payload: 50 kg
  • High Resolution on-Axis Renishaw TONic incremental
  • 11.8 million tick, encoder on the RA axis
  • All-metal precision internal construction
  • Dual belt drives providing minimal backlash
  • USB hub (4 ports)
  • 2.1mm Power port (3 ports)
  • 3 serial ports on the back of the saddle
  • Built-in cable management
  • D-style dovetail saddle


$12,499.00 inc GST

Contact Us For Stock Availability

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Building on the legacy of Sky-Watcher’s popular EQ8 mount, the EQ8-RH introduces a variety of upgrades and enhancements that make observatory-class astrophotography easier than ever.

On-axis Renishaw Encoder

A Renishaw incremental 11.8 million tick encoder is installed on the RA axis of the EQ8-Rh, virtually eliminating periodic error and solidifying the status of the EQ8-Rh as an imminently precise, observatory-class mount for the advanced research astronomer or astrophotographer.

Upgrades include a more streamlined design with balanced motor positioning, a sleek thru-mount cable management system and repositioned power hub with a more ergonomic feel to your setup and workflow. Also included are a powered USB 3.0 hub extension, an internal USB hub, larger saddle knobs for ease of use in cold weather, homing sensors to keep your mount oriented, physical hard stop to prevent cable snap, larger locking levers for ease of use, thread-on aircraft power connector for a secure connection, PC direct control, PPEC training for tack sharp images, and more!

The  EQ8-RH features built-in cable management. This removes cable drag from hanging cables and reduces the risk of cables getting caught during imaging session. This capability also improves the mounts capabilities for remote use.

The built-in USB hub allows you to simply plug in your camera, guider, filter wheel and other USB accessories into the hub below the saddle plate and connect them using a single USB cable plugged into the rear of the mount. No more tangled mess of cabled hanging or need for multiple cables running around the mount.

Another addition to the cable management system is the three built-in 2.1mm ports situated next to the USB hub. This allows your accessories to also be powered through the mount. This reduces the need for multiple power adapters and other accessories. The ports can be run off of a single power source providing a cleaner set up and less cables.

On the gear of the saddle are three serial ports for various accessories such as ST4 guide cables and other serial based accessories. Like the rest of the cable management this reduces the hanging cables and provide a neat connection to the mount.


Motor Positioning

EQ8-R feature improved balance from their predecessor with redeposited motor housings. This improve the mount’s balance over all.


Belt Drive

Both mounts feature belt drive on both the RA and Dec axis. This allows for smoother guiding and reduced backlash.



EQ8-R feature built-in homing sensors. This allows the mount to know its positioning more accurately from its start positioning.


Improved Clutches

The EQ8-R models feature improved clutches allowing for sturdier lock under heavy loads. Simply use the large levers to engage or disengage the axis of choice. The clutch lever are larger than the original EQ8 making it easier to adjust with gloves.


PC Direct Connect

EQ8-R also feature the new PC direct connect feature. Now you can easily connect your mount to your computer without the need of a hand controller. When paired with the SynScan Pro app. for Windows the mount can be aligned and controlled direct from a PC. This makes imaging refined and easier, especially for those with permanent set ups.



Model Number SWEQ8-Rh
Mount Type German Equatorial Mount
Telescope Mounting D Style
Payload 50kg
Mount Head Weight 25kg
Pier Tripod Not Included
Latitude Range 10°-65°
Azimuth Range +/- 10°
Power Requirement DC 12~16V – 4A
Pointing Accuracy up 5 arc. min.
Slewing Speed up to 3.3°/sec
Guiding Speed 0.125X, 0.25X, 0.50X, 0.75X, or 1X
Motors Resolution approx. 0.12 arc-second (11136000 Counts/Rev)
Encoder Resolution 17624 Counts/Rev., approx. 1.2 arc-minutes