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 28 of 63 
Orion Telescopes

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17mm Orion Sirius Plossl Telescope Eyepiece
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In Stock
  • This 1.25" 17mm focal length Plossl eyepiece is ideal for all types of telescopes: reflector, refractor, and catadioptric designs including Mak-Cass telescopes and SCTs
  • Perfect for broad-field lunar observations, medium-sized star clusters, and a wide range of cloudy nebulas and deep-sky targets
  • Multi-coated to provide bright views of impressively high contrast
  • Offers a 52° apparent field of view for clear, crisp images of celestial and terrestrial objects
  • Threaded for use with 1.25" Orion filters

Learn more
Item #  08734

It's no surprise that the eyepieces in our Sirius Plossl line are our best-selling telescope eyepieces. Quality this good usually costs a lot more.

Offering a wide 52 apparent field of view, this 17mm Orion Sirius Plossl Telescope Eyepiece provides extremely sharp images of impressively high contrast. It's ideal for all types of telescopes: reflector, refractor, and catadioptric. The Plossl 4-element design is renowned for its outstanding performance, and has become the standard by which all other telescope eyepieces are judged.

The Sirius Plossl optical system is multi-coated for excellent light transmission and bright views. Lens edges are blackened to reduce scattering of stray light and maximize contrast.

The lenses are mounted in black-anodized aluminum housings with a 1.25"-diameter chrome-plated brass barrel for durability and precision fit. The barrel is internally threaded to accept standard telescope filters. The built-in rubber eyeguard enhances viewing by helping to block out ambient light and position the eye.

A medium-power eyepiece, this 17mm telescope eyepiece is perfect for broad-field lunar observations, medium-sized star clusters, and a wide range of nebular objects.


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 800-676-1343.

Product Support
Visit our product support section for instruction manuals and more
  • Design
  • Eyepiece focal length
  • Barrel size
  • Apparent field of view
  • Eye relief
  • Coatings
  • Number of elements
  • Filter threads
  • Parfocal
  • Field stop diameter
  • Barrel security recess
  • Blackened lens edges
  • Rubber eyeguards
  • Body material
  • Case
  • Dimensions
    2.1 in. x 1.3 in.
  • Warranty
    One Year

Orders received by 1pm Eastern Time for in-stock items ship the same business day. Orders received after 1pm will 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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