Pentax UP 10x25 Binoculars

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Product Overview

  • BAK4 Porro Prisms
  • Fully Multicoated Optics
  • Angle of View: 50°
  • Reinforced Polycarbonate Housing
  • Synchronized Eyepiece Adjustment
  • Center Focusing
  • Standard 1/4"-20 Tripod Mount
  • Twist-Up Eyecups
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The Pentax's highly portable and functional 10x25 U-Series UP Compact Binocular employs an innovative unibody design that locks the objective lenses into the body with the eyepieces set on a synchronized dual-axis mechanism that ensures they stay symmetrical in relation to the center axis of the optic when adjusting the interpupillary distance. The 25 mm objective lenses are fully multicoated to reduce reflection and maximize light transmission to produce the brightest images possible. Aspherical lens elements virtually eliminate distortion, especially around the edges, and corrects for lens astigmatism which can prevent sharp focusing.

Designed for easy carrying and stowing, the binocular features a lightweight fiberglass reinforced polycarbonate housing that is corrosion and impact resistant. The housing material is also temperature-resistant allowing for its use in extreme climates while reducing expansion and contraction wide temperature variations can cause, which can make the optical components move out of collimation over time.

Key Features of the Pentax 10x25 UP Binoculars with Case

  • 10x magnification
  • 25mm objective lenses
  • BAK4 porro-prism optical design
  • Aspherical lens elements reduce distortion at the edges and corrects for lens astigmatism which can prevent sharp focusing
  • Anti-reflection fully multicoated optics
  • 80 m field of view at 914.4 m
  • 50° angle of view

Use and Handling

  • Dual-axis synchronized eyepiece adjustment ensures symmetrical placement when changing interpupillary distances
  • Knurled center focus wheel
  • Twist-up eyecups for use with or without eye wear
  • 15mm eye relief, 2.5mm exit pupil
  • Standard 1/4"-20 tripod mount

Construction Details

  • Lightweight fiberglass reinforced polycarbonate housing
  • Housing is corrosion, temperature and impact-resistant
  • Rubberized armoring protects against impacts and provides slip-resistant grip
  • Inner focusing mechanism provides smooth focus while preserving waterproof seals

  • MPN - 61902
  • GTIN - 027075288850
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Prism Type Porro
Magnification 10x
Objective lens diameter 25 mm
Angle of View 5.0 (actual)
Field of View 87.15 m @ 1000 m
Minimum Focus Distance 1.92 m
Exit Pupil Diameter 2.5 mm
Eye relief 15 mm
Interpupillary Adjustment Not Specified By Manufacturer
Dioptric Correction Not Specified By Manufacturer
Focus Type Center
Tripod Mount Yes
Dimensions 11.4 x 10.9 x 5.5 cm
Weight 0.3 kg
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What’s In The Box
  • Pentax  10x25 UP Binoculars 
  • Neck Strap
  • Carrying Case
  • Eyepiece Caps x2
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