Celestron AstroMaster LT 70AZ Telescope

  • Aperture: 70 mm (2.76 inches).
  • Focal Ratio: F/10.
  • Alt-Azimuth Mount Included.
  • Extremely portable, easy to set up and break down.


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  • Regular price $165.95
  • $119.95
  • You save: $46.00 (27%)

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Celestron AstroMaster LT 70AZ Telescope


The AstroMaster LT 70AZ by Celestron is a highly portable 70 mm (2.76-inch) aperture achromatic refractor telescope at a great value, ideal for any astronomer on the go looking into planetary observation. It produces high clarity and high-quality views of the moon, planets within our solar system, and other similar targets! It is quick and easy to set up without any need for tools, and the altitude-azimuth (AZ) mount is easy to use. It's a great place to start for any astronomer!

This AstroMaster features a 1.25-inch rack-and-pinion focuser. It has large knobs on the side so you won't have to search for them in the dark. The attached red dot finderscope will help you line up your targets, and the star diagonal will place objects in the top-side-up view for you.


  • Optical Design: Refractor.
  • Aperture: 70 mm (2.76 inches).
  • Focal Length: 700 mm (28 inches).
  • Focal Ratio: 10.
  • Focal Length of Eyepiece 1: 20 mm (0.79 inches).
  • Magnification of Eyepiece 1: 35x.
  • Focal Length of Eyepiece 2: 10 mm (0.39 inches).
  • Magnification of Eyepiece 2: 70x.
  • Finderscope: Built-on StarPointer.
  • Star Diagonal: Erect Image Diagonal – 1.25 inches.
  • Highest Useful Magnification: 165x.
  • Lowest Useful Magnification: 10x.
  • Limiting Stellar Magnitude: 11.7.
  • Resolution (Rayleigh): 1.99 arc seconds.
  • Resolution (Dawes): 1.66 arc seconds.
  • Light Gathering Power (Compared to human eye): 100x.
  • Optical Coatings: Fully-Coated.
  • Optical Tube Length: 711 mm (28 inches).


  • Mount Type: Altazimuth.
  • Tripod: 1-inch steel tubes.
  • Software: Starry Night Basic Edition.

OPT Product Number: CE-21074


Aperture70 mm (2.75")
Focal Length700 mm
Focal Ratiof/10
Free ShippingYes
Head DesignAltitude Azimuth
Highest Useful Magnification165x
Limiting Stellar Magnitude11.7
Linear FOV at 1000 Yards89 ft (27 m)
Optical DesignDoublet
Telescope SeriesCelestron AstroMaster LT
Warranty2 Year Warranty


  • AstroMaster LT 70 mm (2.76-inch) Achromatic Refractor OTA.
  • AstroMaster LT70 Alt-Azimuth Mount.
  • Steel Tripod.
  • Attached Red Dot Finderscope.
  • 1.25-Inch Rack-and-Pinion Focuser.
  • 1.25-Inch Eyepiece #1: 20 mm.
  • 1.25-Inch Eyepiece #2: 10 mm.
  • 1.25-Inch Star Diagonal.
  • Astronomy Software: 
    - 10,000 object database, printable sky maps, and 75 enhanced images.