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Eyepiece smc Pentax XW 3.5 (1.25" tube)

$359.00
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Item Number: PTX 70511

Product Information:

Lens Structure::

8 elements, 5 groups

Focal Length::

3.5mm

Apparent Field of View::

70 degrees

Eye Relief::

20mm

Attachment Diameter::

1.25" (31.7mm)

Filter Diameter::

28.6mm

Field Stop Diameter::

4.3mm

Eyepiece Ring::

Helicoid type

Height & Width::

5.4" x 2.4"

Weight::

14.3 oz. (405g)

  • Improved 70 degree field of view for wider views
  • XW 3.5mm, 5mm, 7mm, 10mm, 14mm, 20mm, 30mm, and 40mm provide a wider field of view than previous PENTAX eyepieces
  • All Pentax XW series eyepieces may be used with astronomical telescopes with appropriate 1 1/4" or 2" focusers.
  • XW 3.5mm, 5mm, 7mm, 10mm, 14mm, 20mm eyepieces may be used with our PF series Spotting Scopes (except PF 63 Zoom)
  • Full multi-coated lenses increase light transmission and contrast
  • High refraction, extra-low dispersion lanthanum glass elements deliver bright, high resolution images with minimal distortions and aberrations
  • Advanced computer simulation design technology implemented to drastically reduce internal reflections, producing brighter, clearer images
  • Weatherproof construction for greater durability
  • Long eye relief for comfortable viewing with or without glasses

With unsurpassed optical clarity and the shortest focal length in the XW series, the XW 3.5 offers a 70 degree field of view for easier viewing. All of our eyepieces are constructed with a high-refraction, low-dispersion lanthanum glass that consistently delivers bright, high-resolution images with minimal distortion. In addition, all XW series eyepieces are built to JIS Class 4 weather-proof standards which increases their durability in less than ideal conditions. 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.


Compatible with the following: PF-65 and PF-65 ED II series spotting scopes, PF-80 series spotting scopes, PF-100 series spotting scopes

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