Pentax SMC XW20 20mm Wide Angle Eyepiece (1.25
Pentax SMC XW20 20mm Wide Angle Eyepiece (1.25")

Pentax SMC XW20 20mm Wide Angle Eyepiece (1.25")


SSK # PTX-EP20X-70516

Estimated 3-14 Days Delivery
1 Year Pentax Warranty

Shopping Point 9.250 = RM9.25

Key Features

  • Fits 1.25" Pentax Spotting Scopes
  • 32x with PF-100ED Spotting Scope
  • 27x with PF-80EDA Spotting Scope
  • 26x with PF-80ED Spotting Scope
  • 19.5x with PF-65EDA II & PF-65ED II
  • 70° Apparent Angle of View
  • Extra-Low Dispersion Lanthanum Glass
  • Fully Multi-Coated
  • 20mm Eye Relief
  • Waterproof & Fogproof

Featuring premium optical components, a wide 70° field of a view, and generous 20mm eye relief for comfortable glassing, the SMC XW20 20mm Wide Angle Eyepiece is designed for use with Pentax 65mm, 80mm and 100mm spotting scopes. This 20mm focal length eyepiece yields 32x magnification with the PF-100ED, 27x with the PF-80EDA, 26x with the PF-80ED, and 19.5x with the PF-65EDA II and PF-65ED II. Extra-low dispersion lanthanum glass elements provide a balanced image with minimal aberrations, while fully multi-coated air-to-glass surfaces and partially coated laminated surfaces avoid reflection for optimal light transmission. A light-shielding diaphragm further reduces internal reflections for a bright, high-contrast image.

The eyepiece is constructed to Japanese Industrial Standard Class 4 for water resistance. It is not to be used underwater, but will easily withstand light rain or dew. Its diameter is the American standard of 1.25", so it can be used in other spotting scopes or telescopes, and it offers a 43mm adapter mounting thread under the removable eyecup.

  • Pentax PF-100ED, PF-80EDA, PF-80ED, PF-65EDA II, PF-65ED II spotting scopes
Optical Performance
  • Wide 70° field of view
  • Long 20mm eye relief accommodates eyewear
  • 32x magnification with PF-100ED
  • 27x magnification with PF-80EDA
  • 26x magnification with PF-80ED
  • 19.5x magnification with PF-65EDA II and PF-65ED II
  • Extra-low dispersion lanthanum glass
  • Fully multi-coated on surfaces that come into contact with air
  • Partially coated laminated surfaces
  • Light-shielding diaphragm further reduces internal reflection
  • Weatherproof construction (JIS Class 4-rated)
  • 1.25" diameter
  • 43mm adapter thread under eyecup
Packaging Info
Package Weight 1.17 lb
Box Dimensions (LxWxH) 7.4 x 3.95 x 3.5"
Magnification With PF-100ED Scopes: 32x
With PF-80EDA Scopes: 27x
With PF-80ED Scopes: 26x
With PF-65EDA II and PF-65ED II Scopes: 19.5x
Angle of View 70° (Apparent)
Field of View With PF-100ED Scopes: 124' @ 1000 yd / 38 m @ 1000 m
With PF-80EDA Scopes: 135' @ 1000 yd / 45 m @ 1000 m
With PF-80ED Scopes: 141' @ 1000 yd / 47 m @ 1000 m
With PF-65EDA II, PF-65ED II Scopes: 186' @ 1000 yd / 61 m @ 1000 m
Eye Relief 20.0 mm
Water Resistance Water Resistant
Dimensions ø: 2.4 x L: 3.4" / ø: 6.1 x L: 8.6 cm
Weight 12.5 oz / 355 g
Pentax SMC XW20 20mm Wide Angle Eyepiece (1.25")

Reviews Pentax SMC XW20 20mm Wide Angle Eyepiece (1.25")

Login to leave review.
Login to get access to Q&A

Pentax SMC XW20 20mm Wide Angle Eyepiece (1.25")
Estimated 3-14 Days Delivery
Pentax SMC XW20 20mm Wide Angle Eyepiece (1.25")