Orion 40mm Sirius Plossl Eyepiece - 1.25"

Brand: Orion

SKU : OR-08730

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  • This 1.25" 40mm focal length eyepiece is perfect for all types of telescopes- reflectors, refractors, and catadioptrics
  • Multi-coated for optimal light transmission and bright view quality
  • Excels at wide-field surveying and detailed observations of large diffuse subjects
  • The 43 degree apparent field of view offers clear, sharp images of impressively high contrast

Product Details

  • The eyepieces in Orion's Sirius Plossl line are their best-selling telescope eyepieces. They are of exceptional quality and within a reasonable price range!

    Offering a wide 43° apparent field of view, this 40 mm Orion Sirius Plossl Telescope Eyepiece provides extremely sharp images of impressively high contrast. It's perfect 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 and manufactured.

    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 both durability and precision fit. The barrel is internally threaded to accept standard telescope filters. The built-in rubber eyeguard helps to block out ambient light and position the eye.

    This 40 mm Orion Sirius Plossl Telescope Eyepiece yields the largest-possible field of view in a 1.25" barrel. It's wonderful for wide-field scanning and detailed observations of large diffuse subjects.

  • specifications

    Eye Relief20mm
    Eyepiece TypeFixed
    Field of View43 Degrees
    Focal Length40 mm
    Number of Elements4
    Size1.25"
  • included items

    • This 1.25" 40mm focal length eyepiece is perfect for all types of telescopes- reflectors, refractors, and catadioptrics
    • Multi-coated for optimal light transmission and bright view quality
    • Excels at wide-field surveying and detailed observations of large diffuse subjects
    • The 43 degree apparent field of view offers clear, sharp images of impressively high contrast

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