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Side profile of an Orion 12mm Plossl Eyepiece stood upright.

12 mm Sirius Plossl 1.25" Eyepiece

$29.95

Exp Delivery : Thu, 12 Nov

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Product Details

Since 1975

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2-Year Warranty


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Description

The Orion Sirius Plossl 12 mm is a compact higher-power 1.25" eyepiece for lunar, planetary, and closer deep-sky views when the telescope and sky conditions support the added magnification. It has a 52° apparent field, 8 mm eye relief, fully multi-coated 4-element optics, and standard 1.25" filter threading. This is a rewarding focal length when you want to spend more time on Moon detail, planet detail, or smaller bright targets. Like any higher-power eyepiece, it works best when the atmosphere is steady and the telescope is well aligned, so it rewards patience and careful focusing.

Its multi-coated optics enhance light transmission for brighter views, while blackened lens edges reduce stray light and improve contrast. The eyepiece features a durable black-anodized aluminum body with a metal barrel for a precise fit and long-lasting use. The built-in rubber eye guard provides added comfort and blocks unwanted ambient light during observation.

Product Specifications

  • Focal Length: 12 mm
  • Optical Design: 4-element Plossl
  • Field of View: 52° apparent FOV
  • Barrel Size: 1.25" – compatible with most telescopes
  • Optical Coatings: Fully multi-coated
  • Lens Edges: Blackened to reduce stray light and improve contrast
  • Eye Relief: ~8 mm
  • Filter Compatibility: Threaded for 1.25" filters
  • Body Material: Black-anodized aluminum with metal barrel

Product Features

  • Higher-power 12 mm Sirius Plossl eyepiece
  • 52 degree apparent field of view
  • Fully multi-coated 4-element optical design
  • Standard 1.25 inch format and filter threading
  • Good for Moon and planet detail in suitable conditions
  • Edge-Blackened Elements enhances contrast


Product Manual

What’s Included

  • 1.25" 12 mm Eyepiece
  • 2x Dust Covers

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