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Model: skywatcher-EQ8Brand: Skywatcher
We have the following details of the new Skywatcher EQ8 premium quality heavy-duty mount scheduled for launch early 2013.
This mount is still under development so features and specification might change prior to launch.
Skywatcher EQ8 Manual
Freedom FindTM FunctionThe EQ8 mount is equipped with auxiliary encoders on both the R.A. axis and Dec. axis. Therefore, the mount can keep tracking its current position even when a user unlocks the clutches and rotates the mount in R.A. axis and Dec. axis manually. With this feature, a user can manually operate the mount anytime without worrying about losing the mount’s alignment status. When the user wants to operate the mount with the SynScan hand control again, no alignment is required and all that is needed to be done is to re-lock the clutches.This feature can be enabled or disabled on the SynScan hand controller.Permanent Periodic Error CorrectionThe EQ8 mount is equipped with an index on its R.A. worm thus the motor controller can keep tracking the current position of the worm. After a proper PEC training routine, in which the training data is stored in the motor controller permanently, a user can start the periodic error correction (PEC) at any time to improve the tracking performance for short focal length astrophotography. A training process is not required in the next observing session (assuming that the polar alignment is always accurate), thus this is a Permanent Period Error Correction (PPEC). A user can train the mount with manual guiding or auto-guiding. For detailed instructions,Batch Exposures FunctionThe EQ8 mount is equipped with a SNAP port which can control the shutter release of a camera. Working with the SynScan hand control’s “Camera Control” function, a user can take batch exposures when doing astrophotography. Up to 8 groups of “Exposure-time & Frames” combinations can be set on the SynScan hand controller. For detailed information, refer to the SynScan hand control’s instruction manual.Auto-Home FunctionThe EQ8 mount is equipped with two home position sensors. Working with the SynScan hand controller, the mount can be placed to the same home position after turning on the power. For detailed information, refer to the SynScan hand control’s instruction manual.
German Equatorial Mount
Payload (Counterweights excluded)
Latitude Adjustment Range
10o to 65o
Azimuth Adjustment Range
Weight (Tripod excluded)
2 x 10kg/ea
0.9 o Hybrid Stepper Motor
435:1 Worm Drive + 64 Micro-step/0.9o Stepper Motor Drive
11136000 Counts/Rev., approx. 0.12 arc-second
Maximum Slewing Speed
Sidereal rate, solar rate, lunar rate
0.125X, 0.25X, 0.5X, 0.75X, 1X
100 Segments Permanent PEC
Celestial Object Catalog
Messier, NGC, IC, SAO, Caldwell, Double Star,Variable Star, Named Star, Planets
Up to 5 arc-minutes (RMS)
Resolution of Aux. R.A./Dec. Axis Encoders
17624 Counts/Rev., approx. 1.2 arc-minutes
Note: The above specifications may be changed without advance notice.
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First Light Optics Ltd All rights reserved © 2013
Registered Office: Basepoint Business Centre, Yeoford Way, Marsh Barton Trading Estate, Exeter, Devon, EX2 8LB
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