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Side profile of an Orion 9mm Plossl Eyepiece stood upright.
  • Side profile of an Orion 9mm Plossl Eyepiece stood upright.
  • Angled side profile of an Orion 9mm Plossl eyepiece stood upright, showing the top of the eyepiece.
  • Angled side profile of an Orion 9mm Plossl eyepiece on its side, showing the threaded barrel.
  • Angled side profile of the Orion 9mm Plossl eyepiece on its side, showing the top of the eyepiece faced towards the lower right.
  • Close up of the Orion Sirius Plossl eyepiece filter.
9 mm Sirius Plossl 1.25" Eyepiece

9 mm Sirius Plossl 1.25" Eyepiece

$29.95

Free shipping on orders to the contiguous U.S.

In Stock

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Product Details

Since 1975

Free Shipping Site-Wide

2-Year Warranty


Expert Support

Description

Enhance your observing precision with the 9 mm Sirius Plossl Telescope Eyepiece. Designed for moderately high-power viewing, this 1.25" eyepiece delivers sharp, high-contrast images, making it ideal for planetary, lunar, and deep-sky observations. The proven 4-element Plossl optical design ensures excellent clarity, while multi-coated lenses maximize light transmission for brighter views. Built with a durable aluminum housing and a metal barrel, it delivers reliable performance and excellent views.

Product Specifications

  • Barrel Size: 1.25 inch
  • Apparent Field of View: 52°
  • Eye Relief: 6 mm
  • Lens Coating: Multi-coated
  • Material: Aluminum body with metal barrel
  • Filter Compatibility: Yes (standard 1.25" thread)

Product Features

  • 9 mm focal length is ideal for high-power viewing
  • 52° apparent field of view for sharp, detailed observations
  • 4-element Plossl design for clear and accurate image reproduction
  • Blackened lens edges reduce internal reflections
  • Rubber eyeguard enhances comfort and blocks stray light
  • Threaded barrel supports standard 1.25" filters

Product Manual

Orion Sirius Eyepiece Manual (85.45 kB)

What’s Included

  • 9 mm Sirius Plossl 1.25" Eyepiece
  • 2x Dust Covers

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