Welcome to OPT Telescopes!

My Cart

Your cart is empty

You have no items in your shopping cart.

Orion 70mm Observer Altazimuth Refractor Telescope

Item # OR-9881

Be the first to review this product

0 Questions(s)

Availability: Waiting list



Quick Overview

  • The Orion Observer 70mm Refractor Telescope offers enough aperture for great views of the Moon and nearby planets.
  • Simple Alt-Az mount means easy operation for observers of all ages.
  • The glossy black optical tube of the Orion Observer 70mm Refractor Telescope is made of seamless aluminum and outfitted with a smooth-action rack-and-pinion focuser.
  • A great beginner's telescope or first telescope for children!
  • The Orion Observer 70mm Refractor Telescope includes two eyepieces, finder scope, focuser, diagonal, aluminum tripod and free Starry Night software to help you explore the heavens!

Orion Observer 70mm Refractor Telescope

Telescopes needn't be exclusively nighttime creatures. By virtue of its altazimuth mount, this one works well for both daytime terrestrial viewing and nighttime astronomical use. The Orion Observer 70mm Altazimuth Refractor Telescope offers intuitive up-down, left-right motion to make maneuvering the telescope easy. Whether for panning a scenic landscape or surveying the Milky Way for star clusters, this telescope provides a pleasant experience.

The Orion Observer 70mm Altazimuth Refractor Telescope is well suited to beginners of any age. It is lightweight and compact so it's easy to carry to your observing location, be it out on the lawn or an hour's drive into the hills.

Its glossy black optical tube is made of seamless aluminum and outfitted with a smooth-action rack-and-pinion focuser on one end and a dew cap/glare shield on the other. Housed inside is a multi-coated, achromatic glass objective lens that's 70mm in diameter, with a focal length of 700mm (f/10). This lens takes in 36% more light than a 60mm lens. Bottom line: you'll see more. So, if you can afford the modest additional cost of an Observer 70mm over a 60mm refractor, it 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.

Orion specially engineered the altazimuth mount to provide much greater stability than the standard "off the shelf" altazimuth mounts. It has an altitude micro-motion control to allow very fine aiming adjustments. The tube and mount are supported on a sturdy aluminum tripod that adjusts to a comfortable height. It looks so good, you'll want to keep your Observer 70mm on display when you're not using it.

The Observer 70mm telescope comes with everything you need to start observing right away. Standard accessories include a 5x crosshair finder telescope, mirror star diagonal, 10mm (70x) and 25mm (28x) Explorer II telescope eyepieces, and a tripod accessory tray. It's a telescope that will keep any observer entranced for years. Get in on the fun, get an Orion Observer 70mm Altazimuth Refractor Telescope today! One-year limited warranty.

Orion Observer 70mm Refractor Telescope Features...

  • A great telescope for beginners interested in nighttime stargazing and daytime terrestrial viewing
  • 70mm aperture and 700mm focal length for wonderful views of the moon, planets, nebulas and galaxies
  • Includes a sturdy tripod and an altazimuth mount for simple horizontal and vertical movement
  • Includes two eyepieces, finder scope, focuser, diagonal, and FREE Starry Night astronomy software
  • One-year limited warranty
Orion Product Number: 9881
SKU OR-9881
Manufacturer Orion
Telescope Series Orion Observer
Optical Design Refractor - Achromatic
Mount Type Alt-Azimuth - Manual
Warranty 1 Year Warranty
Telescope Aperture 2.75"
Telescope Focal Length 700mm
Telescope Focal Ratio f/10
Highest Useful Magnification 140x
Limiting Stellar Magnitude 11.9
Optical Coatings Coated
Tube Color or Finish Gloss Black
OTA Mount Type Dobsonian Cradle
Optical Tube Outer Diameter Not provided by manufacturer
Length of Optical Tube Not provided by manufacturer
Optical Tube Weight Not provided by manufacturer
Mount Weight Not provided by manufacturer
Total Telescope Weight 6.5 lbs.
Objects in Database N/A
Alignment Procedure N/A
GPS Included? No
Tripod Type Included Adjustable with Aluminum Legs
CD ROMs Included Starry Night SE
Eyepiece(s) Included 25mm, 10mm
Case Included? No
Hand Controller Included? No
Diagonal Included? Yes - 1.25" Star Diagonal
Dew Shield Included? Yes
Power Adapter Included None - Does Not Require Power
Counterweights Included N/A
Finder Included Red Dot Finder
  • Optical tube assembly
  • 25mm Explorer II telescope eyepiece (1.25")
  • 10mm Explorer II telescope eyepiece (1.25")
  • 90-deg mirror star diagonal
  • Tripod legs
  • Altazimuth yoke mount
  • EZ Finder II finder scope
  • 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

Product Questions

No questions yet. Be the first to ask the question!

Write Your Own Review

You're reviewing: Orion 70mm Observer Altazimuth Refractor Telescope

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars
1= Houston, We Have a Problem & 5= It's Out of This World

Website Design by GammaFX, Design Studio Web Design Studio