Pentax SMC XF 8.5mm Eyepiece 1.25inch

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product overview
product overview
  • For Any Scope Using 1.25" Eyepieces

  • Waterproof & Fogproof

  • Wide Angle

  • 46x with 65mm Pentax Scopes

  • 58x with 80mm Pentax Scopes

  • 74x with 100mm Pentax Scopes

  • 18mm Eye Relief

  • 60° Apparent Field of View

Pentax premium spotting scopes adhere to the American standard of 1.25" eyepiece thread diameter, facilitating the use of eyepieces from independent manufacturers.  That also means, of course, that the wonderful Pentax eyepieces can be used in other telescopes and spotting scopes which accept 1.25" eyepieces.

Pentax eyepieces are a near consensus choice amongst serious amateur and professional astronomers as the best that's out there, quite an accomplishment indeed given the fervent passion of the collective.

The XF lineup are less costly options which were designed for the PF-65ED and PF-65EDA midsized class of spotting scopes and their somewhat shorter focal length of 390mm.  They can be used with any Pentax spotting scope, as well as with other telescopes which accept the standardized 1.25" eyepieces.  The XF eyepieces are meet the J.I.S. "Class 4" standard for waterproofing, described by the Japanese regulators as"water splashed against the enclosure from any direction shall have no harmful effects".
  • Helicoid-type eyecup with four detented click-stop positions

  • Parfocal with the XF 12 eyepiece, requiring no focus readjustments when exchanging the two

  • Accepts 1.25" filters for astronomical & terrestrial applications

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Magnification46x (with the PF-65ED)
Angle of View1.3 (with the PF-65ED)
Field of View: ft@1000yds/m@1000m66' (22 m at 1000 m) (with the PF-65ED)
Exit Pupil Diameter1.4mm (with the PF-65ED)
Eye relief18.0mm
Relative brightness2.0 (with the PF-65ED)
Twilight Factor54.6 (with the PF-65ED)
WeatherproofingWater resistant
Dimensions1.7 x 3.3" (43 x 83mm) WxH
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What’s In The Box

Pentax SMC XF 8.5mm Eyepiece 1.25"

  • Push-On Front & Rear Caps

  • Limited Lifetime Warranty

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