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General| Optical Design | Maksutov-Cassegrain |
|---|---|
| Aperture | 90mm (3.5") |
| Focal Length | 1250mm |
| GoTo | Yes |
| Lowest Useful Magnification | 13x |
| Resolution (Rayleigh) | 1.55 arcseconds |
| Resolution (Dawes) | 1.29 arcseconds |
| Mount Type | Fork Mount |
| Eyepiece(s) | 26mm |
| Magnification | 48x (with 26mm eyepiece) |
| Light Gathering Power | 165x |
| Tripod | Included |
Step-by-step guide for unpacking and setting up the ETX telescope.
Details the manual controls and features of the ETX telescope.
Explains the functions of the telescope's computer control panel.
Describes the primary functions and operation of the electronic controller.
Instructions for using the electronic controller to move and center objects.
Explains the purpose and use of the telescope's viewfinder for object location.
Explains the various modes and functions of the electronic controller.
Describes the Alt/Az and Polar modes for telescope operation.
Procedure for switching between Alt/Az and Polar modes.
Guidance on finding the celestial pole for accurate alignment.
Step-by-step instructions for performing polar alignment with the telescope.
Instructions and tips for astrophotography using ETX telescopes.
Details the Autostar controller for automatic object locating.
Detailed procedure for achieving highly accurate polar alignment.
Instructions on using R.A. and Dec. setting circles for object location.
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