Pentax 8X25 UCF Binoculars

5011-891
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Description

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These compact, waterproof porro-prism binoculars offer 8x magnification at a most reasonable price.

  • Small 25mm objective lenses keep them lightweight, though compared to larger binoculars, they offer less brightness.
  • Field of view is 108m at 1000m.
  • Exit pupil of 3.1mm.
  • 15mm eye relief reduces strain and works well for most eyeglass wearers.
  • Dimensions are 11 x 11.6cm.

Tech specs

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Magnification

This tells you how many times an object is magnified when observed through the binoculars.

8x
Objective lens

The diameter of the objective lens will impact how bright, sharp, and comfortable your view is. Generally, bigger is better.

25mm
Lens coating

Lens coatings reduce light loss and glare to increase contrast and diminish eyestrain. Coated: one layer on external surfaces only. Fully coated: every surface is coated. Multi-coated: multiple layers on some of the surfaces. Fully multi-coated: multiple layers on every optical surface.

Multi-coated
Field of view

The widest dimension of circular viewing area that you can see.

108m
Minimum focus

The nearest distance at which the binoculars will focus on an object.

190cm
Relative brightness

A measure of image brightness. The greater the realtive brightness number the better the binoculars will perform in dim light.

9.6
Exit pupil

The diameter of the objective (outside) lens divided by the binocular's magnification. It indicates the amount of light that reaches your eye (most noticeable in low light conditions). Higher numbers offer brighter images.

3.1mm
Eye relief

The distance between the eyepiece and your eye while still allowing entire field of view. Long eye relief is good for eyeglass wearers.

15mm
Dimensions 11.2 x 6.9cm
Dust proof Yes
Fogproof Yes
Waterproof

Waterproof binoculars are assembled with O-rings and are purged with nitrogen to avoid condensation. They are ideal for boating or use in rainy weather.

Yes
Diopter adjustment

These binoculars can be adjusted for variances between right and left eye vision.

Yes
Includes case Yes
Made in China