Bushnell Powerview 8x21 DCF Binoculars

4007-565

Bushnell Powerview 8x21 DCF Binoculars

4007-565
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Description

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The Powerview is a folding roof-prism compact that will fit in a shirt pocket. Magnification is 8x, which with the 21mm objective lenses and pretty basic lens coatings gives a workable view under daylight conditions. These are perfect binoculars for anyone who may be rough on their gear – good as first binoculars for someone just starting out, or for travel, where theft or loss is often a concern.

  • The Powerview is centre-focusing, and has the usual diopter adjustment to compensate if your eyes are different strengths.
  • Ocular lenses are fairly small, and the small exit pupil (2.6mm) and relatively short eye relief prevent these binoculars from being used comfortably with glasses on – but they still deliver a lot for the price.

Tech specs

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Ideal for Everyday use
Magnification

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

8 x
Objective lens

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

21mm
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.

Fully coated
Field of view

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

127m
Minimum focus

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

340cm
Relative brightness

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

6.8
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.

2.6mm
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.

10mm
Dimensions 10.67 x 3.30cm
Dust proof No
Fogproof No
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.

No
Diopter adjustment

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

Yes
Includes case Yes
Made in China