Meade ETX-125EC Telescope moves off a terrestrial object while observing, Meade Customer Service

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•If inside a warm house or building, move outside. Interior air conditions may distort terrestrial or celestial images, making it difficult, if not impossible, to obtain a sharp focus. For optimal viewing, use the telescope outside in the open air instead of observing through an open or closed window or screen.

•If viewing a land object on a warm day, heat waves will distort the image (see TERRESTRIAL OBSERVING, page 12).

•For clear viewing of objects, turn the focus knob (8, Fig. 1) slowly since the “in-focus” point of a telescope is precise. Turning the focus knob too quickly may cause the focus point to pass without notice.

•The optics within the telescope need time to adjust to the outside ambient temperature to provide the sharpest image. To cool down the optics, set the telescope outside for 10 to 15 minutes before observing begins.

Telescope moves off a terrestrial object while observing:

•The motor drive may be activated (see CHANGING MODES, page 26).

•Verify that the vertical and horizontal locks are tight (see TELESCOPE CONTROLS, page 8).

Telescope does not move past a certain point:

• The built-in vertical or horizontal rotational “stops” may have been reached (see NOTE with bullet , page 6).

Telescope pauses when changing slew direction:

• This pause is normal (see ARROW KEYS, page 8).

A terrestrial object appears reversed left-for-right:

•An eyepiece in the standard 90° observing position (4, Fig. 1) reverses an object left-for-right: To view a correctly oriented image requires the optional #932 Erecting Prism (see OPTIONAL ACCESSORIES, page 21).

Meade Customer Service

If you have a question concerning your ETX model, call the Meade Instruments Customer Service Department at (949) 451-1450, or fax to (949) 451-1460. Customer Service hours are 8:30 AM to 4:30 PM, Pacific Time, Monday through Friday. In the unlikely event that the ETX requires factory servicing or repairs, write or call the Meade Customer Service Department first, before returning the telescope to the factory, giving full particulars as to the nature of the problem, as well as your name, address, and daytime telephone number. The great majority of servicing issues can be resolved by telephone, avoiding return of the telescope to the factory.

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Contents Meade Instruments Corporation Page Contents QUICK-START Guide Slew SpeedTelescope and Electronic Controller Functions ETX-90EC Astro TelescopeETX Your Personal Window to the Universe Telescope ControlsViewfinder Flip mirror control in the up position Computer Control PanelIndicator Light Key Electronic Controller FunctionsLight Blinking Off Getting Started Using The Viewfinder Focusing the ViewfinderAligning the Viewfinder ETX-90EC 8 x 21mm Erect-Image ViewfinderObservation Techniques Choosing an EyepieceAlignment Telescope Focal Length Power = Eyepiece Focal Length 1900mm Power = = 26mmUnderstanding Magnification Terrestrial ObservingAstronomical Observing Sidereal RateElectronic Controller Slew SpeedsAlt/Az Mode Modes of OperationTelescope Mountings Polar Mode To move the telescope using the Electronic ControllerYou use Polar or Equatorial mounting. By Polar Alignment Procedure Celestial CoordinatesLocating the Celestial Pole Standard Tripod Leg ETX-90EC High-Latitude Tripod Leg ETX-90ECStandard Tripod Leg ETX-105EC, ETX-125EC High-Latitude Tripod Leg ETX-105EC, ETX-125ECPhotography ETX-90ECExample of a format 1 photo Few Tips on PhotographyOptional Accessories PowerPower 2x Barlow ETX-105EC ETX-125EC Eyepiece#825 Right- Angle Viewfinder General Maintenance Storage and TransportTroubleshooting Inspecting the OpticsMeade Customer Service Telescope moves off a terrestrial object while observingSpecifications ETX-90EC Astro Telescope Specifications ETX-105EC Astro TelescopeSpecifications ETX-125EC Astro Telescope Changing Modes Using the Electronic Controller Appendix a Advanced Electronic Controller FunctionsTracking Motor Speeds Northern Hemisphere PolarAppendix B Helpful Charts Appendix C Precise Polar Alignment Setting Circles Setting CirclesAppendix D YOU and the Universe Autostar GlossaryMoon PlanetsDeep-Sky Objects Pleiades is one of the most beautiful open clustersMeade Limited Warranty Meade Instruments Corporation
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