Skip to content

Language

Country

William Optics SWAN 72° 9mm Eyepiece - 1.25"

SKU WO-E-SWA09
Original price $87.00 USD - Original price $87.00 USD
Original price
$87.00 USD
$87.00 USD - $87.00 USD
Current price $87.00 USD

Description

  • 1.25-inch eyepiece with 72° apparent field of view
  • 9mm focal length for high-magnification, wide-field viewing
Availability:
Backordered
Contact us to know when we will receive our next ones!

International Shipping

More information

  • Description
  • The William Optics SWAN 72° 9mm Eyepiece is a high-quality optical accessory designed for astronomical telescopes. This wide-angle eyepiece offers an expansive 72-degree apparent field of view, providing immersive, high-magnification views of celestial objects. With its short 9mm focal length, it's ideal for detailed observations of planets, lunar features, and compact deep-sky objects.

    Disclaimer

    Designed for use with telescopes that accept 1.25-inch eyepieces. Ensure your telescope is compatible before purchasing.

    Optical Design


    Incorporates a sophisticated multi-element design optimized for wide-field, high-magnification viewing. The SWAN (Super Wide Angle) series utilizes premium glass and advanced coatings to deliver sharp, high-contrast images across its expansive field of view.

    William Optics SWAN 72° 9mm Eyepiece - 1.25 inch front view

    Field of View


    William Optics SWAN 72° 9mm Eyepiece - 1.25 inch side view

    Boasts an impressive 72-degree apparent field of view, offering a spacious and immersive observing experience even at high magnifications. This wide field is particularly advantageous for observing planets, double stars, and compact deep-sky objects.

    Focal Length:


    With a 9mm focal length, this eyepiece provides high magnification while maintaining a relatively wide true field of view. It's excellent for detailed observations of lunar craters, planetary features, globular clusters, and other small celestial objects.

    Eye Relief


    Offers comfortable eye relief, allowing for extended viewing sessions without eye strain. The exact eye relief specification should be confirmed with the manufacturer for the most up-to-date information.

    Construction


    Crafted with high-quality materials, including a durable metal housing and a soft rubber eye guard for comfort. The 1.25-inch barrel ensures compatibility with a wide range of telescopes and accessories.

    Coatings


    Features multi-layer anti-reflection coatings on all air-to-glass surfaces to maximize light transmission and reduce glare. This ensures high-contrast views with accurate color rendition, critical for planetary and lunar observations.

    Versatility


    While particularly well-suited for lunar and planetary viewing, this eyepiece is versatile enough for various astronomical applications. Its high magnification and wide field make it an excellent choice for splitting double stars, resolving globular clusters, or observing detail in planetary nebulae.