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Sky-Watcher EQ8-R Pro SynScan Equatorial Mount
4,239.00
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Observatory-class German GoTo equatorial mount with a 50 kg imaging payload capacity excluding counterweights. The Sky-Watcher EQ8-R Pro SynScan features belt drive on both axes, built-in cable management, permanent PPEC and a SynScan hand controller with more than 42,900 objects.
Designed for heavy astrophotography systems and permanent observatory installations, the Sky-Watcher EQ8-R Pro SynScan is a German GoTo equatorial mount providing a 50 kg imaging payload capacity, excluding counterweights.
This version includes the mount head only. It can be installed on a permanent pier or combined with the optional EQ8/EQ8-R pier tripod, product code 20293.
The EQ8-R Pro is an evolution of the EQ8 Pro with several mechanical and practical improvements, including integrated cable management, improved connectivity, revised motor positioning for better balance, a stronger clutch mechanism and an improved dovetail locking knob.
Both axes now use belt drive for quieter slewing. The drive system uses 0.9° hybrid stepper motors combined with a 435:1 worm drive and 256 micro-steps.
The supplied SynScan hand controller can automatically locate and track more than 42,900 celestial objects. The mount can also be controlled from a Windows computer via USB or through the SynScan Pro apps for iOS and Android with the optional Wi-Fi dongle.
50 kg Imaging Payload Capacity
The EQ8-R Pro provides a 50 kg payload capacity, excluding counterweights.
This rating is specified for imaging use and allows large optical tubes together with cameras, filter wheels, guiding systems and other imaging equipment to be installed.
Observatory-Class Equatorial Mount
The extra heavy-duty EQ8-R Pro is designed for high-capacity astronomical systems.
The mount head weighs 25.8 kg excluding the tripod.
It can be installed on a permanent pier or used with the optional EQ8/EQ8-R pier tripod.
Belt Drive on Both Axes
Both right ascension and declination axes use belt drive.
This improvement over the earlier EQ8 contributes to quieter slewing.
High-Precision Drive System
The mount uses 0.9° hybrid stepper motors.
The transmission consists of a 435:1 worm drive operating with 256 micro-steps.
Stated resolution is 44,544,000 counts per revolution, equivalent to approximately 0.03 arc-second.
Maximum Slewing Speed of 3.7° per Second
Maximum GoTo slewing speed is 3.7° per second.
The mount supports sidereal, solar and lunar tracking rates.
Selectable Autoguiding Rates
Available autoguiding speeds are:
• 0.125x
• 0.25x
• 0.5x
• 0.75x
• 1x
These settings allow guiding corrections to be adapted to the imaging configuration.
Permanent PPEC
The EQ8-R Pro features 200-segment permanent PPEC.
Periodic error correction can therefore be retained by the mount to improve tracking consistency.
Pointing Accuracy
Stated pointing accuracy is up to 5 arc-minutes RMS.
Built-In Cable Management
The mount features an integrated cable management system.
This helps reduce cable tangling during mount movement and simplifies installation of a complete astrophotography system.
Integrated Connectivity
The EQ8-R Pro provides:
• 4 USB ports
• 3 power outlets for peripheral devices
• Paired RJ10, RJ12 and RJ45 modular jacks
• DSLR SNAP shutter-release port
The SNAP function also supports batch exposures.
Auto Home Function
The Auto Home function allows the mount to automatically locate its reference position.
This is particularly useful for permanent and automated installations.
SynScan Hand Controller Included
A SynScan hand controller is supplied with the mount.
Its database contains more than 42,900 celestial objects for automatic locating and tracking.
Available catalogues include:
• Messier
• NGC
• IC
• SAO
• Caldwell
• Double stars
• Variable stars
• Named stars
• Planets
Computer and Wi-Fi Control
The mount can be controlled from a Windows computer using SynScan Pro via USB.
Control through the SynScan Pro apps for iOS and Android is also possible with the optional Wi-Fi dongle.
Polar Alignment
Polar alignment can be performed through software control.
An external polar scope is also available separately under product code 20295.
Adjustment Range
Latitude adjustment ranges from 10° to 65°.
Azimuth adjustment range is ±10°.
Counterweights Included
Two 10 kg counterweights are supplied.
The counterweight rod weighs 2.6 kg.
No Freedom-Find Encoders
Freedom-Find encoders are not fitted to the EQ8-R Pro.
Power Requirements
The mount operates from an 11–16 V DC power supply.
A higher voltage within this range is preferred.
Specified power consumption is 55 W.
Technical Specifications
• Manufacturer : Sky-Watcher
• Model : EQ8-R Pro SynScan
• Manufacturer product code : 20323
• Type : Computerised German GoTo equatorial mount
• Version : Mount head only
• Class : Extra heavy-duty observatory mount
• Imaging payload capacity : 50 kg excluding counterweights
• Mount head weight : 25.8 kg excluding tripod
• Counterweights supplied : 2 × 10 kg
• Counterweight rod weight : 2.6 kg
• Latitude adjustment range : 10° to 65°
• Azimuth adjustment range : ±10°
• Motors : 0.9° hybrid stepper motors
• Drive : Belt driven on both axes
• Transmission : 435:1 worm drive
• Micro-steps : 256
• Resolution : 44,544,000 counts per revolution
• Stated angular resolution : approx. 0.03 arc-second
• Maximum slewing speed : 3.7°/s
• Sidereal tracking : Yes
• Solar tracking : Yes
• Lunar tracking : Yes
• Autoguiding speeds : 0.125x / 0.25x / 0.5x / 0.75x / 1x
• PPEC : Permanent, 200 segments
• Pointing accuracy : Up to 5 arc-minutes RMS
• Built-in cable management : Yes
• Auto Home function : Yes
• USB ports : 4
• Peripheral power outlets : 3
• Modular jacks : RJ10, RJ12 and RJ45
• DSLR SNAP port : Yes
• Hand controller : SynScan included
• SynScan database : More than 42,900 objects
• Windows control : SynScan Pro via USB
• iOS / Android control : SynScan Pro with optional Wi-Fi dongle
• Polar alignment : Software controlled or optional polar scope
• Freedom-Find encoders : No
• Compatible pier tripod : EQ8/EQ8-R product code 20293
• Optional polar scope : Product code 20295
• Power requirement : 11–16 V DC
• Power consumption : 55 W
Package Contents
• Sky-Watcher EQ8-R Pro SynScan mount head
• SynScan hand controller
• 2 × 10 kg counterweights
Not Included
• Tripod or pier
• External polar scope 20295
• Wi-Fi dongle
Sky-Watcher Mount EQ8-R Pro SynScan
Specific References
- UPC
- 20323
Observatory-class German GoTo equatorial mount with a 50 kg imaging payload capacity excluding counterweights. The Sky-Watcher EQ8-R Pro SynScan features belt drive on both axes, built-in cable management, permanent PPEC and a SynScan hand controller with more than 42,900 objects.