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smc Waterproof Zoom Eyepiece

smc Waterproof Zoom Eyepiece

  • smc Waterproof Zoom Eyepiece

Item Number: PTX 70509

Product Information:

Lens Structure:

6 elements, 4 groups

Real Field of View:

1.9 - 1 degrees

Apparent Field of View:

38-60 degrees

Field of View at 1000m:


Field of View at 1000 Yards:

108 - 56 ft.

Exit Pupil:


Eye Relief:


Relative Brightness:


Eyepiece Size:

5.7" x 2.7"

Lens & Outside Diameter:

144 x 69mm


19.2 oz. (550g)

  • Designed for use with PENTAX PF 80 Series Spotting Scopes, provides 20x-60x magnification when used with them. May also be used on other PENTAX PF Series spotting scopes (except PF-63 Spotting Scope)
  • 60 degree apparent field of view
  • Rubber eyepiece ring designed for viewing comfort
  • Also for use with astronomical telescopes with 1 1/4" focuser
  • Pentax SMC full-surface multi-layer coated optics reduce glare while providing maximum light transmission and color quality
  • High-refraction, low dispersion lanthanum glass to provide high resolution images with minimal aberrations
  • Advanced computer simulation design technology to reduce internal reflections, producing brighter, clearer images
  • Waterproof construction for greater durability.

The smc Zoom eyepiece features a magnification range of 20-60X, an apparent field of view of 38 to 60 degrees, and an eye relief of 20mm. Like all PENTAX eyepieces, it is renowned for its outstanding image reproduction. With its JIS Class 6 rated waterproof and fog proof construction, this Zoom eyepiece is ideal for use with astronomical telescopes.

Compatible with the following: PF-65 and PF-65 ED II series spotting scopes, PF-80 series spotting scopes, PF-100 series spotting scopes

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