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The PF-100ED is the first fully waterproof and fog-proof 100mm objective spotting scope in the market. The straight-line optical barrel design of the PF-100ED makes it easy for the user to locate a subject quickly. It is housed in a lightweight magnesium-allow body and features time-proven porro-prism optics incorporating ED (Extra-low Dispersion) Lanthanum Crown (rare earth) glass elements to produce sharp, clear images with minimal chromatic aberration. PF-100ED also utilizes Pentax telescope eyepieces renowned for their sharpness, field of view, contrast and freedom from aberration. Used together, you have a world class-viewing instrument.


  • Type:  Porro-prism straight type
  • Objective:  100mm (ED lens) 3 elements, 3 groups
  • Attachment Diameter:  1.25" (31.7mm)
  • Focusing Range:  28' - infinity
  • Eyepiece Ring:  Collet type
  • Body Color:  Black
  • Weight:  91.7 oz.
  • Size:  20 x 5.3 x 4.6 inches
  • Waterproof:  1m depth of water, nitrogen filled, JIS Class 6
  • Accessories:  Objective lens cap, eyepiece ring cap, case