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Pentax 3.5mm 1.25" 70° XW Eyepiece. The Ultimate Companion for Telescopes and Spotting Scopes

Product Details

  • Package Dimensions: 7.7 x 4.1 x 3.4 inches
  • Item Weight: 14.2 ounces
  • Shipping Weight: 1.37 pounds
  • Item model number: 70511
  • Improved 70 Degree field of view for easier viewing
  • Xw 3. 5mm, 5mm, 7mm, 10mm, 14mm, 20mm will give a wider field of view than our previous eyepieces when used on Pentax spotting scopes or with telescopes
  • Xw 3. 5mm, 5mm, 7mm, 10mm, 14mm, 20mm, 30mm, and 40mm are designed specifically provide ideal viewing conditions When used with a telescope
  • Fully multi-coated lenses increase light transmission and color quality
  • High-refraction, low-dispersion lanthanum glass elements deliver bright, high-resolution images with Minimal aberrations and distortion

70° Apparent Angle of View, 20mm Eye Relief, plus Weatherproof Body for Multi-
Application Viewing Clear, Comfortable Viewing Assured by 70° Apparent Angle
of View and 20mm Eye Relief All smc PENTAX XW-series eyepieces feature an
extra-wide 70-degree apparent angle of view and an extra-long 20mm eye relief
to deliver an exciting, wide-perspective image. High-Grade Optics for
Exceptional Image Quality The high-performance XW-series optics incorporates
high-refraction, extra-low-dispersion lanthanum glass elements to produce a
well-balanced image with minimal aberrations. It is particularly designed to
reduce the disturbing blackout effect by effectively compensating the
spherical aberration of the pupil. PENTAX-Original Multi-Layer Coating for
Outstanding Light Transmission Efficiency All lens surfaces that come in
contact with air are treated with the original multi-layer coating, while all
laminated surfaces are treated with the innovative partial coating, to offer
the light transmission efficiency of more than 90 percent (an astonishing 96
percent at 550nm) over the visible light spectrum. Advanced Light-Shielding
Technology for Improved Image Contrast Thanks to PENTAX’s advanced computer
simulation technology, the XW series features a light-shielding diaphragm at
the most effective position to drastically reduce internal reflections for a
brighter, higher-contrast image. A Choice of Six Magnifications to Meet
Specific Applications With four different magnifications (3. 5mm, 5mm, 7mm,
10mm, 14mm and 20mm) to choose from, the XW series accommodates a wide range
of both casual and specialized applications. Weatherproof Construction for
All-Weather Viewing The XW series features JIS Class 4 weatherproof
construction, making it possible to use it in drizzle or under night dew.
The XW-series eyepieces are not designed for underwater use and should not be
submerged under water. Standard Eyepiece Sleeve and Built-In Adapter-Mounting
Screw The XW series features the American-standard 1. 25” tube (31. 7mm) for
smooth, easy installation on the ANY telescope and/or PENTAX spotting scopes.
When the rotatable eyecup is removed, it also offers an optional adapter-
mounting screw/thread (43mm in diameter with a 0. 75mm pitch).


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Shipping &

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Item will be shipped FREE standard shipping in 1 business day after payment is
Express Shipping services are available.
Tracking number will be provided.


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We stand behind our
products. Items can be returned for
exchange or full refund within 30 days
from the date you receive your
Return shipping is the responsibility of
buyer unless the return is a result of
our mistake (i.e., your receive the
wrong item).
We will pay for return
shipping and replacement back if an
exchange of the same product is
requested due to an error.


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If you have any questions please contact
us. We
will respond within 1 business day or


Filed under: Eyepieces & Accessories