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Please Note

Orion has made the difficult decision to close our warehouse facility in the Netherlands. With the continuing supply chain/logistics challenges and slowness in the economy we have found that it is not economically feasible to maintain operations in the UK and Europe.

We have therefore stopped taking orders on this website. We apologize for any inconvenience.

We will continue to have Orion dealers in Europe to meet the needs of Orion consumers. We will also continue to honor the 30-Day product return period as well as honoring the Orion warranty for purchases made in the UK and Europe.

Our US-based Customer Service Representatives are here to help. Contact them via email at support@telescope.com or in the United Kingdom, via phone at 0-800-041-8146 (Monday-Friday between the hours of 1300 and 2400 GMT).

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Orion Telescopes
Intermediate
Orion 120mm f/5.0 Refractor Telescope Optical Tube Assembly
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This product is no longer available for purchase.
  • Rich-field refractor optical tube assembly with big 4.7" aperture for deep-sky pursuits and wide-field astrophotography use
  • 120mm aperture and 600mm focal length refractor provides crisp wide-field views exhibiting high contrast
  • Perfectly portable at just 8.6 lbs., makes for a great grab-and-go telescope
  • 2" rack and pinion focuser accepts both 2" and 1.25" eyepieces and accessories
  • Optical tube only - mount, tripod, and accessories sold separately


Learn more
Item #  09836u

This compact, large-aperture Orion 120mm F/5.0 Refractor Telescope Optical Tube is perfect for deep-sky pursuits. Its 120mm (4.7"), multi-coated achromatic telescope lens assembly and modest 600mm focal length combine to provide breathtaking wide-field views. With an optional 25mm Plossl telescope eyepiece, this telescope serves up a sprawling 2.1° swath of sky! The fast f/5.0 optical system also makes it an excellent telescope for astrophotography. The 26"-long optical tube is well baffled to ensure good contrast. The cast-metal 2" rack-and-pinion focuser accommodates either a 1.25" or 2" diagonal, so you can use 1.25" or 2" telescope eyepieces. Tube color is gunmetal gray metallic. A mounting base molded into the focuser casting to accept an optional Orion finder scope or EZ Finder reflex sight. Sold as tube assembly only without accessories. Includes objective lens cap.

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
    Brighter deep sky
  • Best for imaging
    Deep sky
  • User level
    Intermediate
  • Optical design
    Refractor
  • Optical diameter
    120mm
  • Focal length
    600mm
  • Focal ratio
    f/5.0
  • Coatings
    Multi-coated
  • Optics type
    Air-spaced doublet
  • Glass material
    Crown/Flint
  • Eyepieces
    None
  • Resolving power
    0.97arc*sec
  • Lowest useful magnification
    17x
  • Highest useful magnification
    240x
  • Highest theoretical magnification
    240x
  • Limiting stellar magnitude
    13.1
  • Optical quality
    Diffraction limited
  • Finder scope
    None
  • Focuser
    2" Rack-and-pinion
  • Mount type
    Optical Tube without Mount
  • Astro-imaging capability
    Lunar, planetary & long exposure
  • Tube material
    Aluminum
  • Length of optical tube
    63.5cm
  • Weight, optical tube
    3.9kg
  • Weight, fully assembled
    3.9kg
  • Additional included accessories
    1.25" adapter
  • Other features
    2" focuser
  • Warranty
    One year

Orion 120mm f/5.0 refractor telescope optical tube assembly
2" - 1.25" telescope eyepiece adapter
Dust cap

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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