20mm Orion Expanse Telescope Eyepiece
Item #08923e
5.0 / 5.0
€ 49.99
The 20mm Orion Expanse is a low powered eyepiece that is perfect for wide field views of deep sky objects. The fully multi-coated elements deliver sharp images with good color correction and contrast.
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  • More Info
    • This 20mm Expanse 1.25" telescope eyepiece offers a wide field of view and superior optical performance at a bargain price
    • Long 18mm eye relief lets eyeglass wearers view the entire field comfortably without removing their glasses
    • Expanse eyepieces offer a wide 66-degree apparent field of view to let you see more of the sky
    • Delivers sharp views with good color correction and high contrast
    • Aluminum barrel is internally blackened to eliminate internal light scattering, and is threaded to accept 1.25" Orion filters

    With its 66 apparent field of view, this 20mm Orion Expanse Telescope Eyepiece will definitely turn up the 'Wow!' factor in your deep-sky observing experiences! Imagine taking in objects like the Andromeda Galaxy, the Double Cluster, or the star clouds in Sagittarius in one sweep! With an Expanse in your focuser, you can!

    This 20mm focal length Expanse ocular has a big eye lens to peer into and a long, comfortable 18mm eye relief. Eyeglass wearers can view the entire field without removing their glasses. All eyepiece elements are fully coated, with the outer lens multi-coated for additional light transmission. The 1.25" aluminum barrel is threaded for filters and internally blackened to eliminate internal scattering. And its fold-down rubber eyeguard enhances contrast by blocking stray light.

    With our Expanse eyepieces you get a super wide field of view and superior optical performance. And check out the price. You also get a bargain!


    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

  • Specs
    • Design:
    • Eyepiece focal length:
      20,0 mm
    • Barrel size:
    • Apparent field of view:
    • Eye relief:
      18,0 mm
    • Coatings:
    • Number of elements:
    • Filter threads:
    • Parfocal:
    • Field stop diameter:
      23,5 mm
    • Barrel security recess:
    • Blackened lens edges:
    • Rubber eyeguards:
    • Body material:
    • Case:
    • Dimensions:
      5,8 cm x 33,0 mm
    • Warranty:
      One year
  • Shipping Info

    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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