Domain Name Com's Meade ETX125AT Telescope w/ UHTC, Autostar Controller (497) and Tripod (884)

Meade ETX125AT Telescope w/ UHTC, Autostar Controller (497) and Tripod (884)

Domain Name Com's - : Meade ETX125AT Telescope w/ UHTC, Autostar Controller (497) and Tripod (884)

Aperture Modes: 100mm-150mm
Batteries: 8 AA
Binding: Electronics
Brand: Meade
EAN: 0709942990591
Label: Meade
Manufacturer: Meade
Model: 0515-03-21
Publisher: Meade
Sales Rank: 5055
Studio: Meade

Features:

Includes AutoStar controller and deluxe field tripod
UHTC coatings are on all optical surfaces for enhanced detail
500x maximum magnification
Maksutov meniscus corrector lens of Grade-A BK7 optical glass
Includes a Meade Series 4000 Super Plvssl 26 millimeter eyepiece for 48 times magnification

Accessories:

Editorial Review:

Product Description:
Meade ETX 125AT Astro Telescope.

From the Manufacturer:
The ETX-125EC permits a broad range of astronomical study. In deep space, the ETX-125EC's larger aperture enables the observation of galaxies and nebulae in much wider extension and permits the resolution of celestial objects as faint as magnitude 12.5. The entire Messier listing of 110 objects is now not only visible, but, in addition, every object takes on a readily discernible structure. The Autostar controller turns the ETX-125EC into an automatic celestial object-locating system.

The UHTC Difference

Each time light encounters a mirror (above) or lens (below), some light is lost. In the case of a lens, light is lost at both the entrance to and exit from the lens. UHTC dramatically decreases this light loss.

Image brightness in a telescope is crucially dependent on the reflectivity of the telescope's mirrors and on the transmission of its lenses. Neither of these processes, mirror-reflectivity or lens-transmission, is, however, perfect; light loss occurs in each instance where light is reflected or transmitted. Uncoated glass, for example, reflects about 4% of the light impacting it; in the case of an uncoated lens 4% of the light is lost at entrance to and at exit from the lens, for a total light loss of about 8%. Meade standard mirror and lens coatings equal or exceed the reflectivity and transmission, respectively, of virtually any optical coatings currently offered in the commercial telescope industry.

Ultra-High Transmission coatings (UHTC), recently developed at the Meade Irvine coatings facility, however, have permitted the vacuum-deposition of a series of exotic optical coatings precisely tuned to optimize the visual, photographic, and CCD imaging performance of Meade telescopes. This telescope includes primary and secondary mirrors coated with aluminum enhanced with a complex stack of multi-layer coatings of titanium dioxide and silicon dioxide. The thickness of each coating layer is precisely controlled to within 1% of optimal thickness. The result is a dramatic increase in mirror reflectivity across the entire visible spectrum; at the important hydrogen-alpha wavelength of 656nm. - the predominant wavelength of emission nebulae -- reflectivity is increased from 89% to over 97%.

This telescope presents dramatically brighter images on the full range of celestial objects — from emission and planetary nebulae such as M8, M20, and M57 to star clusters and galaxies such as M3, M13, and M101. Observations of the Moon and planets, since they are observed in reflected (white) sunlight, benefit in image brightness from the full spectrum of increased transmission.

And more

The computer-driven Autostar controller makes it easy to find 30,000 celestial objects.

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.

ETX optical systems include a Maksutov meniscus corrector lens of Grade-A BK7 optical glass. High-transmission magnesium fluoride (MgF2) coatings on both sides of the correcting lens, as well as aluminum-silicon monoxide coatings on the primary and secondary mirrors, are provided as standard equipment. Use the standard pushbutton electronic controller at any of four dual-axis speeds: 8x sidereal for image centering in the main telescope at high power; 32x for image centering at lower powers or for pushbutton object tracking in the altazimuth mode; slow mode for image centering in the viewfinder or for terrestrial tracking of nature and sightseeing; or medium speed for fast slewing across the sky. The observer can instantly select any of these speeds simply by depressing the speed button on the controller.

The telescope’s ultraportable design allows the viewer to view from any flat surface, be it a window sill, car hood, or picnic table. The optional tripod can raise the telescope to any comfortable height.

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 telescope’s optical tube in a finely-controlled motion to achieve precise image focus.
9. Horizontal Lock - Controls the manual horizontal rotation of the telescope.
10. Computer Control Panel

A. ON/OFF Switch.
B. Auxiliary Ports - Provide connection for current and future Meade accessories.
C. Handbox (HBX) Port - for the Electronic Controller or the optional Autostar handbox.
D. The 12v connector, designed to accept an external power supply such as the optional AC Adapter or Power Cord.
E. LED power indicator light.

11. Base Housing - Supports the telescope for placement on a flat, level surface, such as a tabletop or optional tripod.
12. Holes for Optional Tripod - See your tripod’s instruction sheet for mounting information.
13. Right Ascension (R.A.) Setting Circle.
14. Flip-Mirror and Flip-Mirror Control Knobs - ETX telescopes include an internal mirror. With the flipmirror control in the "up" position, light is diverted to the eyepiece. With the flipmirror control in the "down" position, as shown in Fig. 2b, light proceeds straight out the photo port for photography.
15. Photo Port - Attach any 35mm camera with a removable lens to this port using an optional adapter.
16. Declination Setting Circle (on left fork arm).
17. Viewfinder Alignment Screws - adjust these screws to align the viewfinder.
18. Viewfinder Alignment Bracket.
19. Dust Cap
20. Battery Compartment (not shown, underneath base).

Customer Reviews

Average Rating: out of 5 stars

Rating:

- Junk
The AutoStar is junk. Next to impossible to align. Totaly Impossible to stay aligned. I spent hours setting up to spend 5 seconds viewing. Absolutly no support either.

Rating:

- Very nice for a beginner
I've bought mine when I did not know anything about astronomy. It is an amazing toy for an intelligent person. I thought that my 10 year old son will play with it, but it is over his head, I am actually playing with it. It is a completely automatic scope, i.e. after alignment is complete, it will guide you through the sky, and show you anything which is in it's database and above the horizon. The scope comes with a hand-held device "Autostar" which is a computer with a built database and 2-line ... Read More

Rating:

- Meade EXT125EC /uhtc w/ autostar
A novice to astronomy i bought this unit with extra bells and whistles, thinking it would be a good intro to astronomy. I am completely disappointed and would never recommend it to anyone for any purpose other then a door stop. Unless you already have some knowledge of telescopes avoid it at all costs. Set up is difficult to impossible, and what eventually appears is not much better then what you can already see on a clear night. As far as i am concerned this purchase was a waste of money.

Rating:

- Awesome Telescope!!!!! Beginner or Expert!!!!!
This is an awesome scope that is so much fun to use and makes it easy as can be to learn about astronomy. It comes with everything you need to see some of the most amazing outerspace objects, nebulas, other galaxies,and more. I can not say enough how easy and fun you will have with this scope. You can use it for terrestrial or space exploration. The only negative to the scope is do not expect to get many hours out of the AA batteries. Some things to do: first is buy an electronic focuser or a ... Read More

Rating:

- A Great Versatile Instrument
This is a great instrument for beginners and amateurs alike. Highly portable and easy to set up, which is important in light polluted areas such as Natick, MA. This allows me to get up and go to dark sky areas for fantastic viewing. Even in light polluted suburbia, the Moon, Mars, Saturn, Jupiter, Andromeda Galaxy, and the Orion Nebula are clearly visible as well as many other Messier objects. If you're a beginner, don't expect to see the flag on the Moon, Hubble Space Telescope can't even see that, ... Read More

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