Meade ETX90 AT 90mm GoTo Maksutov-Cassegrain Telescope

MSRP: $799.99 Please see your local authorized reseller for pricing and availability.

View All Specifications

  • 90mm (3.5") f/13.8 telescope optics with Ultra-High Transmission Coatings (UHTC) for extremely bright images with high contrast and clarity
  • A full Go-To computerized telescope in an extremely compact form (weighs just 17 lbs. assembled!) - perfect for both the backyard and when traveling to dark sky locations!
  • The ETX telescope is internally powered via 8x AA-cell batteries (not included), and includes 12v input jack for use with an optional external 12v power source
  • Includes 26mm Super Plössl telescope eyepiece, Red-dot Viewfinder, eyepiece accessory tray and chrome plated tubular steel tripod
  • Bonus accessories include a 1.25" moon filter, the MoonMap 260, and a smartphone photo adapter. A $50+ value!
Item #: 205010

Where To Buy?

  • Woodland Hills Camera & Telescopes
  • Orion Telescopes & Binoculars
  • High Point Scientific
  • Mile High Astronomy
  • The Binocular & Telescope Shop
  • Khan Scope
  • First Light Optics

The iconic Meade ETX90 AT (f/13.8) GoTo Maksutov-Cassegrain Telescope offers optical quality that has made it a standard in the industry. Features include Meade's best telescope optical coatings, an advanced Meade AudioStar GOTO computer handbox and an easy-to-use red-dot viewfinder along with a solid mount and tripod. If you are looking for a high-quality portable telescope absolutely loaded with features and the performance you desire, look no further.

The Maksutov-Cassegrain Optical System

The optical path and components of the ETX telescope design

Designed in the USA.

The Meade ETX90 GoTo telescope features an advanced Maksutov-Cassegrain design for pinpoint star images and extraordinary contrast. This makes it fantastic for brighter deep sky objects and ideal for detailed lunar and planetary observation as it easily soars to high magnification. The 90mm (3.5") telescope aperture has a focal length of 1250mm, f/13.8, and includes Meade's best Ultra-High Transmission Coatings (UHTC). Use your smartphone or other dedicated astrophotography camera to take high quality solar system images including the rings of Saturn, cloud bands of Jupiter, and extremely high resolution details of the lunar surface.

The Meade AudioStar features audio files and an internal speaker.

With the included AudioStar telescope hand controller you have easy access to thousands of objects along with a wealth of data about each one! AudioStar Astronomer Inside technology features a built-in speaker that plays over four hours of educational content about the celestial objects you are viewing! After a very simple alignment routine, the AudioStar is ready to take you to any object above the horizon in its database. Can also be connected to a PC for more advanced control.

The Audiostar telescope hand controller database includes over 30,000 objects that you can view with a simple press of a button! AudioStar Astronomer Inside technology features a built-in speaker that plays over four hours of educational content about the celestial objects you are viewing! This computerized celestial object locating system plugs into the telescope's handbox port allowing for a quick and easy telescope alignment. Once aligned with the sky, the AudioStar is ready to take you to any object above the horizon in its database. In addition to GoTo and tracking capability, the AudioStar permits a wide array of fascinating and educational functions such as multiple Guided Tours, digital positional readouts, the ability to link the telescope with a PC using Meade's #505 connecting cable, and much more.

Standard equipment includes a Meade 884 telescope field tripod, Meade 26mm Series 4000 1.25" Super Plössl eyepiece (48X), Red-dot Finder, Smart Phone Adapter, Moon Filter, and Moon Map. The very stable tripod features chrome plated tubular steel legs and for the astrophotographer conveniently has a built-in wedge which can be used for polar alignment of the telescope. The ETX telescope is internally powered by 8 (user-supplied) AA batteries which will run it for approximately 20 hours under normal usage. An AC adapter is also available for separate purchase.

The similarly advanced telescope optical tube design incorporates a unique flip mirror mechanism, allowing light to either go to the comfortable 90 degree observing position of the eyepiece or the built-in camera attachment port at the rear of the telescope tube. Optional adapters are available for many popular camera models.

The ETX telescope optical tube and motorized fork assembly weighs a mere 7 lbs. making the Meade ETX90 a world class performer in a very portable package.

Limited Warranty against defects in materials or workmanship for two years from date of purchase. This warranty is provided by Meade for the benefit of the original retail purchaser only. For complete warranty details contact Meade at 800-626-3233.

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Best for viewing
Lunar & planetary
Best for imaging
Lunar & planetary
Astro-imaging capability
Lunar & planetary
User level
Optical design
Optical diameter
Focal length
Focal ratio
Fully multi-coated
Optics type
Super Plossl 26.0mm (1.25")
Magnification with included eyepieces
Resolving power
Highest useful magnification
Highest theoretical magnification
Limiting stellar magnitude
Optical quality
Diffraction limited
Finder scope
Reflex sight
Mount type
Computerized compatibility
Go-To included
Alignment procedure
Easy (Two-Star) Align
Number of objects in database
Motor type
DC Servo motors with encoders
Power requirement
8-AA batteries
Backlash compensation
Setting circles
Tube material
Tripod material
Tripod leg diameter
1.50 in.
Length of optical tube
11.5 in.
Weight, optical tube
7.0 lbs.
Weight, mount/tripod
10.0 lbs.
Weight, fully assembled
17.0 lbs.
Additional included accessories
SmartPhone camera adapter, 1.25" eyepiece moon filter, Meade MoonMap 260
Other features
Ultra-High Transmission Coatings (UHTC), AudioStar Controller with multiple guided tours, Equatorial tilt plate (wedge) built into tripod
Two year