11 imagesPentax Weatherproof XW 5mm Extra Wide Eyepiece w/1.25 Barrel
Pentax Weatherproof XW 5mm Extra Wide Eyepiece w/1.25 Barrel
Pentax Weatherproof XW 5mm Extra Wide Eyepiece w/1.25 Barrel
Pentax Weatherproof XW 20mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof  XW 7mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 10mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 3.5mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 14mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 10mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 10mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 10mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 10mm Extra Wide Eyepiece w/1.25in Barrel
Pentax Weatherproof XW 10mm Extra Wide Eyepiece w/1.25in Barrel
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Product Info for Pentax XW Extra Wide Fully Multi-Coated Eyepiece

The Pentax XW Extra Wide Eyepiece features an extra-wide 70 degree angle of view, and paired with an astounding 20mm eye relief, you'll have a comfortable, large view. These Optics by Pentax are built with high-performance, high-refraction, extra-low-dispersion lanthanum glass elements for crystal clear images, and the proprietary multi-layer coatings on all lens surfaces deliver a light transmission efficiency of more than 90 percent over the visible light spectrum. The Pentax XW Multi-Coated Eyepiece is JIS Class 4 weatherproof constructed so you can use your eyepiece in light drizzle or even under night dew, so you can be confident you're getting the best view in most weather conditions. Get the best view you can with this Pentax XW 31.7mm Sleeve Eyepiece!image

Specifications for Pentax XW Extra Wide Fully Multi-Coated Eyepiece:

Manufacturer: Pentax
Finish: Satin
Color: Black
Diameter: 1.25 in
Field of View, Angle: 70 degrees
Eye Relief: 20 mm
Lens Finish: Fully Multi-Coated

Features of Pentax XW Extra Wide Eyepiece, PX-4S-XW:

  • Clear, comfortable viewing assured by 70 degree apparent angle of view and 20mm eye relief
  • High-grade optics for exceptional image quality
  • Pentax original multi-layer coating for outstanding light transmission efficiency
  • Advanced light-shielding technology for improved image contrast
  • Weatherproof construction for all-weather viewing
  • American-standard eyepiece sleeve and built-in adapter mounting screw

Package Contents:

  • Pentax XW Extra Wide Fully Multi-Coated Eyepiece
Customer Reviews for Pentax XW Extra Wide Fully Multi-Coated Eyepiece Read All (1)
Most Recent Reviews
by John, Verified Owner from DE, United States Updated on November 14, 2023
good quality glass . I got this Pentax eyepiece because of the quality I have come to expect with all Pentax products. The quality of their glass and products never lets me down. I like this product
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Pentax XW Extra Wide Fully Multi-Coated Eyepiece Orderable Models

List of Orderable Models

  • Open Box, Dealer Demo, Pentax Weatherproof XW 5mm Extra Wide Eyepiece w/1.25 Barrel, 70512 , MPN: 70512-DMO , Code: PX-4S-XW-70512-DMO-OB-A
  • Pentax Weatherproof XW 5mm Extra Wide Eyepiece w/1.25 Barrel, 70512 , MPN: 70512 , UPC: 027075075207 , Code: PX-4S-XW-70512
  • Pentax Weatherproof XW 20mm Extra Wide Eyepiece w/1.25in Barrel, 70516 , MPN: 70516 , UPC: 027075075245 , Code: PX-4S-XW-70516
  • Pentax Weatherproof XW 7mm Extra Wide Eyepiece w/1.25in Barrel, 70513 , MPN: 70513 , UPC: 027075075214 , Code: PX-4S-XW-70513
  • Pentax Weatherproof XW 10mm Extra Wide Eyepiece w/1.25in Barrel, 70514 , MPN: 70514 , UPC: 027075075221 , Code: PX-4S-XW-70514
  • Pentax Weatherproof XW 3.5mm Extra Wide Eyepiece w/1.25in Barrel, 70511 , MPN: 70511 , UPC: 027075075191 , Code: PX-4S-XW-70511
  • Pentax Weatherproof XW 14mm Extra Wide Eyepiece w/1.25in Barrel, 70515 , MPN: 70515 , UPC: 027075075238 , Code: PX-4S-XW-70515

Pentax XW Extra Wide Fully Multi-Coated Eyepiece Unavailable & Discontinued Models

List of Unorderable Models

  • USED Pentax Weatherproof XW 3.5mm Extra Wide Eyepiece w/1.25in Barrel, 70511, EDEMO1, Used, Condition Like New, Inspect and Rebox , MPN: 70511-EDEMO1 , Code: PX-4S-XW-70511-EDEMO-RE-A
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Last updated 2026-11-04 UTC.