Pentax XW 40mm Eyepiece

Eyepieces > Spotting Scopes

  • Lens Structure: 7 elements, 6 groups
  • Focal Length (mm): 40
  • Apparent Field of View: 70 degrees
  • Eye Relief: 20mm
  • Attachment Diameter: 2" (50.8mm)
  • Eyepiece Ring: Helicoid type
  • Height (mm): 117
  • Width (mm): 76
  • Weight (gms): 700
XW Widefield eyepieces from Pentax have replaced the much respected XL series. 40mm and 30mm are 2" barrel size, all others are 1.25". All now have 70 degree apparent fields, excellent edge of field performance, parfocal, adjustable eyecup positioning and fully multi-coated. Many astronomers prefer the performance of these eyepieces over other widefield designs.
View the whole Pentax Binoculars, Spotting Scopes & Telescopes product range.
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