AMAZON DOT COM
AMAZON DOT COM Product Description This telescope includes a free Autostar computer controller and deluxe field tripod with this ETX-90EC--a value of $349. And with the ETX-90EC, Meade brings a serious telescope into the price range of the casual consumer. The ETX-90EC Astro offers extraordinary optics at an affordable price. It combines a high-resolution optical design and diffraction-limited imaging with microprocessor-controlled, precise celestial-object tracking, all in a nicely styled, highly portable package. The Autostar controller turns the ETX-90EC into an automatic celestial-object locating system.
Catadioptrics This is a catadioptric telescope. Catadioptrics use an ingenious combination of mirrors and lenses to "fold" the light path into a remarkably compact tube. This type of design--which includes Schmidt-Cassegrain and Maksutov-Cassegrain telescopes--offers good value even while it scores high on the techno-geek meter.
Read more about different telescope designs in our buying guide Just plug the Autostar into the telescope's HBX port in place of the standard-equipment electronic controller, do a quick telescope alignment, and you're ready to observe any object in the Autostar's 30,000-object database.
The ETX-90EC also includes high-torque DC motors on both telescope axes, permitting electronic operation from the handheld controller. This pushbutton electronic controller has four dual-axis drive speeds: slow, 8x for image centering at high power; medium, 32x for image centering at lower power or for pushbutton tracking in altazimuth mode; moderate, 0.75 degrees per second for image centering in the viewfinder or for terrestrial tracking; and fast, 5 degrees per second for fast scanning across the sky.
The Meade ETX-90EC is specially designed to be portable and used in the field. It offers cordless operation, allowing you to use the telescope's dual-axis drive system for more than 40 hours on eight AA batteries. At approximately 8 pounds, and 15 inches in length, it packs a lot of power into a compact unit.
The ETX-90EC uses a 90mm Maksutov-Cassegrain optical design. Meade also uses EMC super-multicoatings on all optical surfaces to maximize light transmission through the corrector lens and reflectance from the primary and secondary mirrors. The flip-mirror system allows for 90-degree observation of land and sky objects, straight-through observation using the optional 45-degree erecting prism, or photo-ready imaging using the optional T-adapter and your own 35mm camera.
The Nuts and Bolts
1. Eyepiece
2. Viewfinder
3. Eyepiece Holder Thumbscrew - Tightens the eyepiece in place.
4. 90 Eyepiece Holder - Holds the eyepiece upright for easy viewing.
5. Optical Tube - The main optical component that gathers the light from distant objects and brings this light to a focus for examination with the eyepiece.
6. Vertical Lock - Controls the manual vertical movement of the telescope.
7. Fork Arms - Hold the optical tube in place.
8. Focus Knob - Moves the telescopes optical tube in a finely-controlled motion to achieve precise image focus.
What make this Meade ETX90AT Telescope w/884 Tripod and Software stands out ?
Features
- Includes Autostar controller and deluxe field tripod
- Cordless motor drive for fully automatic tracking
- Equatorial fork mount, flip-mirror system
- Maksutov meniscus corrector lens of Grade-A BK7 optical glass
- Includes a Meade Series 4000 Super Plossl 26 millimeter eyepiece for 48 times magnification
Meade ETX90AT Telescope w/884 Tripod and Software price is ? $850.00
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| Product Description | Technical Information | Customer Reviews |
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