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William Optics SWAN Eyepieces

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Eyepiece Focal Length
Product Code
Eyepiece Type
Super-Wide Angle
Field of View
72 degrees
Barrel Size
1.25" and 2" Eyepiece
Email us a question about this ProductWilliam Optics

SWAN: the perfect compromise between quality, cost, eye-relief and edge sharpness. All with a SWA super-wide angle 72 deg. F.O.V! The ultimate SWA eyepieces. Try and compare! Ideal for SCT and Refractor Telescopes.

Perfect match with William Optics telescopes 

  • Outstanding super-wide field of view: 72 deg. F.O.V.
  • Fully Multicoated lenses for excellent transmittance.
  • Outstanding chromatic aberration correction.
  • Excellent contrast and light throughput for sharp viewing.

Great Contrast 

  • Fully internally blackened (lens edges and internal spacers). 
  • No internal reflections.
  • No flaring or ghosting on high-contrast objects. 
  • Parfocal.

Light and Easy 

  • Soft rubber eyecup
  • Long eye-relief
  • No internal reflections or kidney bean effect

Terrific Fit and Finish 

  • High-resistance anodized black barrel.
  • Smooth design for no hook up in your focuser. 
  • Threaded for 1.25"/2" filters.

Long Eye Relief:

  • 9mm eyepiece: 12mm
  • 15mm eyepiece: tbc
  • 20mm eyepiece: 17mm
  • 25mm eyepiece: 25mm
  • 33mm eyepeice: 28mm
  • 40mm eyepiece: 28mm

Specifications: William Optics SWAN Eyepieces

Focal Length       9mm
Lens Structure     5/4
Field of View        72
Eye Relief            12mm
Barrel                   1.25"
Coating                FMC
Parfocal               Yes
Weight                 70g

What's in the Box

What's in the Box: William Optics SWAN Eyepieces

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At The Widescreen Centre, we prioritize prompt order processing and dispatch. We strive to dispatch all orders on the same day or the next working day, depending on the time of your order. We hold extensive stocks to ensure that your items are ready for immediate despatch. Please note that the cut-off time for same-day dispatch is usually 1:30 p.m.

For delivery within Mainland UK, we use reputable couriers to provide efficient service. You can expect your package to arrive in 1-2 working days. Please note that a signature may be required upon delivery to ensure a secure receipt.

In the case of special order items, the delivery time may be longer. If you have any concerns or questions about the delivery of your item, please don't hesitate to Contact Us. We are here to assist you.

Should there be any delay in dispatching your order, we will notify you to keep you informed.

Please be aware that The Widescreen Centre cannot be held responsible for any postal or third-party delays that may occur. We are committed to providing a reliable and efficient delivery service for our valued customers.

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