With unsurpassed optical clarity and offering a 70 degree field of view for comfortable viewing, PENTAX offers a wide selection of focal lengths with the XW eyepieces. They feature fully multi-coated lenses to increase light transmission and color quality, high-refraction lanthanum glass elements for high-resolution images with minimal aberrations, and JIS Class 4 weatherproof construction for durability. Engineered using advanced computer simulation design technology, this eyepieces also offer an unsurpassed 20mm of eye relief. Designed for use with a wide range of telescopes and PENTAX brand spotting scopes, the XW series eyepieces are a clear choice for ground and astronomical applications.


  • 70 degree field of view for easier viewing

  • Fully multi-coated lenses increase light transmission and color quality

  • Advanced computer simulation design technology was used to drastically reduce internal reflections producing brighter, clearer images

  • Designed specifically provide ideal viewing conditions when used with a telescope

  • High-refraction, low-dispersion lanthanum glass elements deliver bright, high-resolution images with minimal aberrations and distortion

  • JIS Class 4 weather proof construction makes these eyepieces more durable

Eye Relief


Eyepiece Ring

Helicoid type


12.9 oz. (365g)

  • Lens Cap
  • Tube Cap


  • No Downloads Available


  • No Downloads Available

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