PENTAX XF 8.5mm Eyepiece 1.25"

Manufactured by: Pentax
Model: XF85


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With a focal length of 8.5mm, the high-performance PENTAX XF 8.5 eyepiece is ideal for outdoor viewing and bird watching. As a standard unifocal eyepiece it offers a 60 degree apparent field of view, long eye relief, and bright, high-contrast images.

Lens Structure:6 elements, 4 groups
Real Field of View:1.3 degrees
Apparent Field of View:60 degrees
Field of View at 1000m:22m
Field of View at 1000 Yards:66 ft.
Angle of View:1.3
Exit Pupil:1.4mm
Eye Relief:18mm
Field Stop Diameter:8.8mm
Relative Brightness:1.9
Height & Width:3.3" x 1.7"

  • 60 degree apparent field of view
  • Rubber eyepiece ring designed for viewing comfort
  • Also recommended for use with astronomical telescopes with 1.25" focuser
  • Pentax SMC full-surface multi-layer coated optics reduce glare while providing maximum light transmission and color quality
  • High-refraction, low dispersion lanthanum glass to provide high resolution images with minimal aberrations
  • Advanced computer simulation design technology to reduce internal reflections, producing brighter, clearer images.
  • Weatherproof construction for greater durability.

    The PENTAX "Worry Free" Warranty is available on all PENTAX Sport Optics products purchased in the United States from an authorized PENTAX dealer. More..

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