Super Waterproof Lightweight BAK4 Zoom Compact Binoculars for Adults/Kids,10×42 High Power Long Distance Binoculars for…

Amazon.com Price: $89.99 (as of 17/09/2021 07:04 PST- Details)

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✔【100% waterproof, mildewproof and anti-fog】— Focevi binoculars can be soaked in water for 1 hour without affecting the use, the sealing performance is very good. The lens barrelr is filled with nitrogen, which has a good effect of anti-mold and anti-fog. Focevi binoculars can still be used normally in rainy weather or in environments with large temperature differences.
✔【Large eyepieces, long exit-pupil distance, no dizziness】—The eyepiece lens diameter of the Focevi binoculars is 21MM,more than 20MM, have large field of view, no dizziness. The exit-pupil distance is 16mm, more than 15MM, comfortable to watch, and it has rotating eye mask, it is easy to use whether you wear glasses or not.

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Amazon.com Price: $89.99 (as of 17/09/2021 07:04 PST- Details)

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Focevi nitrogen waterproof binoculars are truly 100% waterproof, adapt to various environments,prolong service life

Nitrogen waterproof binoculars have a sealed ring on the eyepiece and objective ,the barrel is filled with dry nitrogen.when adjusting the focus,the eyepiece and the objective lens do not move, so the airtightness is good. There is no condensation in the lens barrel. It is truly waterproof, mildew-proof and fog-proof, prolongs the service life of binoculars,let you use it with confidence in various environments,such as humid environment, torridity environment and cold environment.Bird watching, hunting, theater, opera and travel are all very convenient

When the non-nitrogen waterproof binoculars are used in the humid environment or the environment with large temperature difference, water vapor will condenses in the lens barrel, which will not only affect the viewing, but also cause mold ,affect the service life of the binoculars.

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How to identify whether it is a nitrogen-filled waterproof binoculars?

First, nitrogen waterproof binoculars are all internally focused, that is, the position of the objective lens is fixed during focusing. If the position of the objective lens is moved during focusing, then the binoculars are not nitrogen-filled waterproof binoculars.

Second, nitrogen waterproof binoculars are really waterproof. You can soak the binoculars in water, take them out and see if they work properly. If not, the binoculars are not nitrogen waterproof binoculars.

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Focevi binoculars have 16.5MM large diameter BAK4 prism, which is brighter and better for viewing

When viewing, the light enters the lens barrel from the objective lens, and then enters the eyepiece after being reflected by the prism.

If the diameter of the prism is relatively small, the light entering the lens barrel cannot be completely reflected, so there is a loss of light, which affects the brightness of the image.

The 16.5mm large prism binoculars has only about 1% light loss, while the 12.5mm prism light loss is about 30%. Therefore, the binoculars with 16.5MM prism are much better than those with 12.5MM prism.

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Focevis binoculars have 21mm large eyepieces,wider field of view, more comfortable viewing

Eyepiece diameter is the most key factor affect the field of view. You can use your thumb and index finger to form circles of different sizes, and then place them on your eyes, then you can intuitively feel the changes in the field of view brought by binoculars with different eyepiece sizes.

If want large field of view, eyepiece diameter must be greater than 20MM, if not,field of view is small and will be dizzy.

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16MM long exit pupil distance, more comfortable viewing, suitable for a wider crowd

When using binoculars, you can put the rotating eyecup on the eye sockets to avoid the shaking of the scene during observation.If the exit pupil distance is relatively short, then the eyelashes may touch the eyepiece, which will affect the comfort of viewing.

Generally, the exit pupil distance must be kept above 15MM to maintain a better observation comfort.

In addition, people who wear glasses also need binoculars with an exit pupil distance of 15 mm or more.

Package and Parameter Table

Package: binoculars*1, carrying bag*1, eyepiece cover*1, objective cover*2, cleaning cloth*1, straps*1
Parameter table Type:10*42
Waterproof 100% waterproof
Objective Lens Diamete 42mm
Eyepiece Lens diameter 21mm
Lens Coating FMC
Field of View 315 ft at 1000 yards
Exit-pupil distance 16MM
Tripod Adaptable yes
Product net weight 1.21 pound
Anti-fog yes

Make sure this fits by entering your model number.
✔【100% waterproof, mildewproof and anti-fog】— Focevi binoculars can be soaked in water for 1 hour without affecting the use, the sealing performance is very good. The lens barrelr is filled with nitrogen, which has a good effect of anti-mold and anti-fog. Focevi binoculars can still be used normally in rainy weather or in environments with large temperature differences.
✔【Large eyepieces, long exit-pupil distance, no dizziness】—The eyepiece lens diameter of the Focevi binoculars is 21MM,more than 20MM, have large field of view, no dizziness. The exit-pupil distance is 16mm, more than 15MM, comfortable to watch, and it has rotating eye mask, it is easy to use whether you wear glasses or not.
✔【High-quality optics, 10X42 binoculars】–Focevi binocular equipped with 21MM eyepiece + 42MM objective + FMC multi-layer green film+ BAK4 prism, so it have high light transmittance, the image is clearer and brighter, edge is not blurred and it can be well observed even at night low light. Weighing only 1.21 pounds, 10X power magnification and 315ft/1000yds large field of view, suitable for adults to bird watching, hunting, travel, hiking, theatre to see opera and concert , etc
✔【High-quality materials and non-slip design】—Focevi binoculars are made of high-quality materials, have good performance, no odor. In addition, a frosted anti-slip design is used to prevent slipping and damaging the binoculars. Binoculars have tripod interface
✔【rich gifts】— If you buy our products now, we will give you rich gifts, including carrying bag, eyepiece and objective cover, cleaning cloth and straps and so on.

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