Meade LX200GPS instruction manual Series 4000 8 24mm Zoom Eyepiece

Page 42

Fig. 24: Series 4000 8 - 24mm Zoom

Eyepiece.

Fig. 25: #140 2x Barlow Lens.

Fig. 26: #905 Variable Polarizer and #1A Skylight Filter.

Fig. 27: #929 2" Diagonal Mirror and

#928 45° Erect-Image Diagonal

Prism.

Series 4000 8 - 24mm Zoom Eyepiece: The internal zoom optics of this eyepiece move on smooth, precisely machined surfaces which maintain optical collimation at all zoom settings. A scale graduated in 1mm units indicates the zoom focal length in operation. An excellent addition to any eyepiece set.

#140 2x Barlow Lens: A 3-element design, doubles each eyepiece power while maintaining uncompromised image resolution, color correction, and contrast. Insert the #140 into the telescope’s eyepiece-holder first, followed by the diagonal prism and eyepiece. The #126 2x Barlow Lens, a compact 2-element alternative to the #140, may also be employed with any LX200GPS-Series telescope.

Series 4000 Photo-Visual Color Filters: Color filters significantly enhance visual and photographic image contrast of the Moon and planets. Each filter threads into the barrel of any Meade 1.25" eyepiece, and into the barrels of virtually all other eye- piece brands as well. Meade filters are available in 12 colors for lunar and planetary applications, and in Neutral Density as a lunar glare-reduction filter.

Series 4000 Nebular Filters: A modern boon to the city-dwelling deep-space observer, the interference nebular filter effectively cancels out the effects of most urban light pollution, while leaving the light of deep-space nebular emissions virtual- ly unattenuated. Meade Series 4000 Nebular Filters utilize the very latest in coating technology, and are available with threaded cells for eyepieces or for attachment to the rear cells of Meade Schmidt-Cassegrain models.

Variable Tele-Extender:For eyepiece-projection photography of the Moon and the planets, a Tele-Extender is required. The variable Tele-Extender threads onto the tele- scope's eyepiece-holder, into which is inserted an eyepiece of typically about 26mm focal length; the 35mm camera body couples to the tele-extender by means of a T- Mount. The Meade Variable Tele-Extender permits a range of projection images.

#929 2" Diagonal Mirror; #928 45° Erect-Image Diagonal Prism: The #929 2" Diagonal Mirror (provided as standard equipment on the 12" LX200GPS, available optionally on other models) attaches to the rear cell of all LX200GPS telescopes and permits the use of wide-field 2" O.D. eyepieces (e.g., Meade Series 4000 Super Wide 32mm and 40mm eyepieces and others). Each diagonal includes a Meade optical-flat mirror of Pyrex® glass, aluminized and multi-coated. Diagonal mirrors and prisms result in images that are correctly oriented up-and-down but reversed left-for-right. For terrestrial observing a fully correctly oriented telescopic image is desirable; the #928 Diagonal Prism accomplishes this image correction and places the eyepiece at a convenient 45° viewing angle. The #928 is for use with the 1.25" Eyepiece-Holder.

Series 4000 Plö ssl 9mm Illuminated Reticle Eyepiece: The most advanced com- mercially-available illuminated reticle eyepiece, this Series 4000 Plössl 9mm model, powered by an internal battery, includes micrometric x-y positioning controls which greatly facilitate locking onto the guide star: Turn the finely-threaded controls and place the reticle’s crossline pattern precisely at the desired position in the field. The sharp, high-power imaging of the 4-element,multi-coated Plössl optical system is complemented by a rubber eyecup (foldable for eyeglass wearers) that shuts out dis- tracting stray light from the observer’s eye. The upper (lens) section of the eyepiece rotates on a fine thread for precise diopter adjustment to the user’s eye. Reticle pat- tern is a double crossline with two concentric circles.

#62 T-Adapter:The T-Adapter is the basic means of prime-focus photography through all Meade Schmidt-Cassegrain models. Thread the T-Adapter on to the rear cell of your telescope, followed by a T-Mount for your 35mm camera, and the camera body is rigidly coupled to the telescope.

#777 Off-Axis Guider: The Off-Axis Guider provides a means during long-exposure astrophotography for the photographer to monitor the tracking of the telescope to assure that the telescope remains precisely positioned on the object being pho- tographed. Like the T-Adapter, the Off-Axis Guider couples the camera body to the tel- escope but it also causes a small amount of the guidestar’s incoming light to be divert- ed at a right angle, where the star’s position can be examined for tracking errors with an illuminated reticle eyepiece; position corrections can then be effected using Autostar II.

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Contents Meade Instruments Corporation Meade Schmidt-Cassegrain Optical System Meade Maksutov-Cassegrain Optical SystemContents QUICK-START Guide Important Note Telescope Features Autostar# Computer Control Panel see inset See Optional ACCESSORIES, pages 41, 42,Ascension Declination setting Telescope? See pages 17Definitions Ascension,Shift Microfocuser? Autostar II Features Tour the Cosmos with Just the Push of a ButtonLibrary # of Objects Want to learn more about changing slew speeds? See LX200GPS Tips Parts Listing How to Attach the Tripod to the Telescope AssemblyGetting Started How to Assemble Your Telescope To install batteriesTip Attach Diagonal or accessories Choosing an EyepieceMounting and Adjusting the Viewfinder Too Much Power?Observing by Moving the Telescope Manually Observing Using Autostar IIs Arrow KeysObserving Terrestrial ObservingTo use the microfocuser Focusing the Eyepiece Using the MicrofocuserSlew Speeds Key # SpeedTo Track an Object Automatically Observe the MoonAstronomical Observing Moving Through Autostar II’s MenusWhich One’s the Alignment Star? Important NotesObserve a Star using the Automatic Tracking Feature Using the Guided TourGo To Saturn Global Positioning System Detecting True LevelFinding True North Basic Autostar Autostar II Navigation ExerciseTo Calculate Sunset time Navigating Autostar Look into the FutureMenus Select Item ObjectObject Menu To slew the telescope to catalog objectsWant to learn more about Observing Satellites? See Want to learn more about using the Browse menu? See Event MenuGlossary Menu Utilities MenuWant to learn more about Landmarks? See Setup Menu Timing is EverythingRECTION, Setup Menu Daylight SAVING, Adding and editing sites?Hot Button Menus Mirror, MirrorAdding Observing Sites To Add a Site to the user-defined site listTo Edit a Site Creating User Objects To GO to a user-entered objectTo Add a landmark to the database Observing SatellitesLandmarks TipsTo perform a Landmark Survey IdentifyTo Select a landmark from the database To check on the available amount of memory in AutostarBrowse Displayed information ExampleInitialize Autostar How to perform the Easy Align ProcedureAlternate Alt/Az Alignments Easy Two-Star AlignmentOne-Star Alt/Az Alignment To Set the Home Position ManuallyTip Try a Spiral Search Periodic Error Correction Star ChartsPhotography Few tips on photography with the LX200GPS telescopesOptional Accessories Meade Series 4000 EyepiecesSeries 4000 8 24mm Zoom Eyepiece Illuminated Reticle Eyepiece Maintenance CollimationDefocused star images. Misaligned 1, 2, Aligned Inspecting the Optics Meade Customer ServiceWhat is Smart Drive? Gauging the Movement of the TelescopeSpecifications 15 LX200GPS SpecificationsMaksutov Fan 10 LX200GPS Specifications 10 f/10 LX200GPS Specifications12 f/10 LX200GPS Specifications 16 f/10 LX200GPS Specifications Autostar II System SpecificationsAutostar II Handbox Specifications Setting Circles Equatorial AlignmentCelestial Coordinates Declination Setting Circle Equatorial WedgeLining Up with the Celestial Pole Locating PolarisPrecise Polar Alignment LX200GPS mounted on an equatorial wedgeOne-Star Polar Alignment Autostar II Polar AlignmentEasy Polar Alignment Two-Star Polar AlignmentCity State/Prov./Country Latitude Appendix B Latitude ChartLatitude Chart for Major Cities of the World City Country LatitudeTour Modes Command LineWhat you will need Comment LineWriting a Tour TitlePick ONE / Pick END Appendix D Training the Drive Further StudyTo observe the Apollo 15 landing site using the Moon option Appendix E the Moon Menu16 LX200GPS Unique Features Control Panel FeaturesCommercial Shipping Telescope Assembly To Assemble the 16 Super Field TripodAttaching the 16 Drive Base Mounting the Optical Tube Assembly OTAAttaching the Power and Data Cords Attaching the ForkTighten the fork arm assem- bly using the provided hex key Observing ConsiderationsAppendix G To attach the microfocuser to the de-rotaterObjects in Space Basic AstronomyAutostar II Glossary MoonPlanets Deep-Sky ObjectsPage Meade Instruments Corporation
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