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Orion Telescopes
Beginner
Orion Observer 70mm Altazimuth Refractor Telescope
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  • A great entry-level refractor telescope for beginners looking for a quality instrument that will provide great views of the night sky
  • 70mm (2.75") aperture lens collects enough light from the night sky for wonderful views of the Moon, bright planets like Mars, Saturn, and Jupiter, and the brightest nebulas and star clusters
  • The Observer 70 AZ's altazimuth telescope mount provides smooth up/down and left/right panning motion across the sky, and the adjustable-height tripod helps make your viewing sessions comfortable
  • Includes two Explorer II 1.25"eyepieces (25mm, and 10mm focal lengths) for viewing at 28x or 70x magnification through the telescope, an EZ Finder II reflex sight for easy aiming, and a 90-degree mirror diagonal for crisp and clear night sky views
  • Can also be used for pleasing daytime terrestrial views of wildlife and scenery with a correct-image diagonal (sold separately)


Learn more
Item #  09881e

Thanks to its sturdy altazimuth mount and quality refractive optics, the Orion Observer 70 mm refractor telescope works well for both daytime terrestrial viewing and nighttime astronomical use. The included altazimuth mount offers intuitive up/down (altitude) and left/right (azimuth) motion to make maneuvering the telescope easy. Whether you're scanning a scenic landscape or surveying the Milky Way for star clusters, this telescope will provide a pleasant experience.

The Observer 70 mm Altazimuth Refractor Telescope is well suited to beginning astronomers thanks to its versatility and simple, easy-to-use design. It is a very lightweight and compact telescope, weighing just 6.5 lbs. once assembled, so it's easy to carry to any observing location, be it out on the lawn or an hour's drive into the hills.

Its glossy black refractor telescope optical tube is made of seamless aluminum and outfitted with a smooth-action rack-and-pinion focuser which accepts 1.25" accessories and eyepieces. Housed inside the telescope tube is a multi-coated, achromatic glass objective lens that is 70 mm in diameter, with a focal length of 700 mm (f/10). This lens takes in 36% more light than a 60 mm lens, meaning you'll be able to see more detail on both celestial and terrestrial objects. Compared to a 60 mm refractor, the Orion Observer 70 mm and its larger optics will reward you with brighter images and, for astronomy, a larger repertoire of objects to see. You'll enjoy outstanding looks at the Moon's cratered surface, Jupiter's cloud bands and moons, Saturn and its rings, the majestic Orion Nebula, and the mind-boggling Andromeda Galaxy, to name just a few of the treasures you can see. A dew and glare shield on the objective end (or front of the telescope) helps prevent dew from forming on the optical lens and also helps block unwanted stray light.  

The specially engineered altazimuth mount provides much greater stability than standard "off the shelf" altazimuth mounts found in many department stores. It has an altitude micro-motion control to allow very fine aiming adjustments. The refractor telescope tube and mount are supported on a sturdy aluminum tripod that adjusts to comfortable heights for the whole family to use.

The Observer 70 mm Telescope comes with everything you need to start observing the night sky right away:

Includes two quality telescope eyepieces: a 25 mm Kellner eyepiece for 28x views and a 10 mm Kellner eyepiece for higher magnification, 70x views.

The included telescope eyepieces provide two different magnification options right out of the box! We recommend starting with the 25 mm ocular to obtain wide, 28x views. Then for closer looks, you can boost the power all the way up to 70x by using the 10 mm telescope eyepiece. An included accessory tray for the tripod provides a convenient spot to keep your eyepieces ready for action.

The included Orion EZ Finder II red-dot sight makes aiming the telescope nice and easy.

Following a simple alignment procedure that parents can help with, you can use the EZ Finder II sight to accurately aim the Observer 70 mm telescope at objects in the sky like the Moon and bright planets. Once aligned with the telescope, just turn on the EZ Finder II and peer through the sight's small circular viewing window so you see the red dot, and move the telescope until the red dot is on the object you want to see. Look in the telescope, and it's there!

A 90 mirror diagonal is included for comfortable nighttime viewing.

A diagonal bends the light path of a telescope so you can view the sky comfortably. Without a diagonal, you'd have to look straight-through the telescope, which can be tricky and downright uncomfortable when looking at certain areas of the sky. Bending the light collected by the Observer 70 mm telescope at a 90 angle lets you look down into the eyepiece so you can relax and enjoy the view.

Learn about the night sky with the included Starry Night Special Edition software

Explore starry skies anytime - even when it's cloudy! The SkyQuest XT6 Classic Dobsonian telescope includes a FREE Special Edition digital download of Starry Night astronomy software. With realistic sky simulations and a many useful features including telescope control, the user-friendly Starry Night Special Edition software will help you plan your observations and understand what you see. Requires PC running Windows XP, Vista, 7 or 8. Requires Macintosh running OS X 10.4 or higher.

To make the Orion Observer 70 perform as a high-quality daytime telescope to scan scenery, wildlife and more, an optional 45 correct-image diagonal can be substituted for the 90 diagonal. This optional accessory will make the Observer 70 yield a view with correct, non-reversed daytime orientation. Correct-image 45 diagonals are sold separately by Orion.  

 

The Orion Observer 70 Altazimuth refractor is a telescope that will keep any observer entranced for years. Get in on the fun today!

 

Warranty

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at sales-eu@telescope.com

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Lunar & planetary
  • Best for imaging
    Lunar & planetary
  • User level
    Beginner
  • Optical design
    Refractors
  • Optical diameter
    70 mm
  • Focal length
    700 mm
  • Focal ratio
    f/10,0
  • Coatings
    Fully coated
  • Optics type
    Air-spaced doublet
  • Glass material
    Crown/Flint
  • Eyepieces
    Explorer II 25,0 mm,10,0 mm (1,25")
  • Magnification with included eyepieces
    28 x, 70 x
  • Resolving power
    1,65 arc*sec
  • Lowest useful magnification
    10 x
  • Highest useful magnification
    140 x
  • Highest theoretical magnification
    140 x
  • Limiting stellar magnitude
    11,9
  • Optical quality
    Diffraction limited
  • Finder scope
    EZ Finder II
  • Focuser
    1,25" Rack-and-pinion
  • Diagonal degrees
    1,25" 90° Mirror Star
  • Mirror coatings/over-coatings
    Magnesium Flouride
  • Mount type
    Altazimuth
  • Astro-imaging capability
    Simple moon shots
  • Computerized compatibility
    Not compatible
  • Tube material
    Aluminum
  • Tripod material
    Aluminum
  • Height range of mount
    74,93 cm - 1,27 m
  • Length of optical tube
    70,4 cm
  • Weight, fully assembled
    3,0 kg
  • Additional included accessories
    Included accessories may vary for 2nds, Substitutions may be made
  • Other features
    2nds are covered by Orion's Satisfaction Guarantee
  • Warranty
    One year

Orion 70 mm f/10.0 refractor telescope optical tube assembly
25 mm Orion Explorer II telescope eyepiece (1.25")
10 mm Orion Explorer II telescope eyepiece (1.25")
90 mirror star diagonal
Tripod legs
Altazimuth yoke mount
EZ Finder II finder scope
Orion finder scope bracket
Tripod accessory tray
Dust cap
Altitude micro-motion control rod and thumbwheel
Tripod attachment screws
Wing nuts
Washers
Accessory tray attachment wing screws
Leg lock knobs
Yoke knobs
Starry Night special edition software

Orders received by 5pm UTC for in-stock items ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

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