Pentax XW 10mm

Pentax XW 10mm


In stock - Shipped 1-2 working days.

Model:  PentaxXW10
Part Number:  70514
Brand:  Pentax

A useful and popular focal length that will quickly become one of your favourites. 


  • High-refraction, low-dispersion Lanthanum glass.
  • Pentax Super Multi-Coatings (SMC) on all air/glass surfaces.
  • Edge-blackened optics and optimised baffles minimise internal reflections.
  • Optically corrected for use with focal ratios as fast as f/4.
  • 20mm eye-relief and twist-up rubber-rimmed eyecups - perfect for spectacle wearers.
  • Chromed barrels threaded to accept filters.
  • Weatherproof to JIS Class 4 standards.
Lens Structure: 7 elements, 6 groups
Focal Length: 10mm
Apparent Field of View: 70 degrees
Eye Relief: 20mm
Attachment Diameter: 1.25" (31.7mm)
Filter Diameter: 28.6mm
Field Stop Diameter: 12.4mm
Eyepiece Ring: Helicoid type
Height & Width: 4.3" x 2.4"
Weight: 13.8 oz. (390g)

Eyepiece Field of View Simulator

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Marvellous do-everything eyepiece
Wednesday, 29 August 2018  | 

Bought this eyepiece because it has long eye relief (20 mm) and relatively large field of view. I have used it with a Tak FC-100, Vixen SD81S, Vixen A80M and Celestron C8 on moon, planets, double stars and DSOs.

Performance is excellent, producing excellent sharpness and contrast, and aberrations are extremely well controlled. Also, the eyepiece has an excellent quality feel to it. Highly recommended.

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June 2018 / View Older
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