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1500001: Orion Observer 70mm Refractor Telescope


This is a great refractor telescope for the beginner sky observer! It is very portable and has an easy-to-use yet sturdy Altazimuth mount. The high quality optics provide enjoyable astronomical viewing and are superior to other 60mm and 70mm telescopes selling for under $200. It provides an upright image and can be used for both terrestrial and celestial viewing. Ages 8 & up.

The key to good astronomical viewing is not high magnification but greater light gathering ability. This 70mm f/10 telescope has a light grasp of 5.9 square inches, 100 times the light of the unaided human eye and 36% more light than a 60mm reflector telescope. More light means you will see more stars and galaxies and greater detail of the moon and planets.

In an independent test of low-cost starter telescopes, Sky & Telescope said the Orion Observer 70mm is "the refractor with the best optics", that it delivered "crisp, high-contrast views" and it is "The best refractor in our roundup." (Dec 2005). In this same test, the Orion Observer 70mm refractor significantly outperformed telescopes by Meade, Celestron, and Bushnell.

For help finding the telescope that's right for you, see our Selecting a Telescope guide.

Note: Economy Shipping and shipping specials are not available for this bulky item. This item only ships to a street address in the 50 US states with Ground Service shipping.

Product Specifications

    70mm diameter multi-coated objective lens

    700mm focal length, f/10.0

    5.9 sq. in. light grasp

    165x maximum theoretical magnification

    Quality Explorer II Kellner fully-coated 25mm and 10mm 1.25" eyepieces provide clear, sharp images and magnification of 28x and 70x with a 50°field of view

    1.25" rack-and-pinion focuser

    90° mirror star diagonal for viewing comfort

    EZ Finder II red-dot finder scope is a super easy to use nonmagnifying sighting device with a 10° field of view

    Easy-to-use Altazimuth mount with altitude fine adjustment

    Deluxe aluminum tripod with accessories tray

    Aluminum optical tube with enamel finish

    Includes easy-to-understand instructions for use and assembly

    Includes Starry Night Special Edition astronomy software for PC or Mac that provides access to 1 million star and deep space objects plus the SkyTheatre DVD which provides a 102 minute tour through our solar system ($69.90 value)

    Weighs 7 lbs with a 28" tube length

    One year warranty, Orion Telescopes model Observer™ 70mm Altazimuth Refractor Telescope

Telescope Magnification:

Don't make the mistake of buying a telescope for the high magnification advertised. Many low-priced telescopes boast magnification of over 500x, which is totally unusable for three reasons.

    First, the theoretical magnification for any telescope is limited by aperture (primary lens or mirror) diameter. The maximum theoretical magnification is 120x for a 60mm telescope and 228x for a 114mm telescope.

    Second, atmospheric conditions limit magnification to 200-250x on the very best of nights even with very large telescopes.

    Third, the low quality optics on most inexpensive telescopes do not produce a clear, sharp image even at lower magnifications.

Most night sky observing is done in the range of 25x-150x. The Orion telescopes we offer have excellent optics at these magnification levels, even up to 250x, ensuring you will enjoy your night sky viewing.

More Information

    Observer 70mm Refractor Telescope Product Manual

PRICE:               139.95

1500001: Orion Observer 70mm Refractor Telescope




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