Nikon

<p>Big objective lenses and multi-coated optics for an image so crisp you’ll feel you can reach out to straighten a Bufflehead’s twisted tail feather. They’re light, compact and waterproof, so you can bring them anywhere. All the lenses and prisms are made with eco-friendly glass that’s free of arsenic and lead.</p><ul><li>Roof-prism construction reduces weight and bulk</li><li>Roof prisms are phase-correction-coated for high resolution and high-reflection mirror-coated for brightness</li><li>Nitrogen-filled barrels eliminate fogging</li><li>Waterproof to 1m for 10 minutes</li><li>Long eye relief ensures a clear field of view, even for eyeglass wearers</li><li>Turn-and-slide eyecups with multi-clicks make selecting the correct eyepoint fast and easy</li><li>Rubber armour for shock resistance and a firm grip even in the wet</li></ul>

Nikon Prostaff 7s 8x30

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

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

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.

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

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

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

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.

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

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.

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

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Nikon Prostaff 7s 8x30

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