Marine Binoculars 10x50 with Rangefinder Compass for Adults FMC Lens Waterproof Fogproof Low Light Vision Binoculars for Boating

Marine Binoculars 10x50 with Rangefinder Compass for Adults FMC Lens Waterproof Fogproof Low Light Vision Binoculars for Boating

About this item

【10x50 Marine Binoculars】 With 10x magnification, 26mm eyepieces and 50mm large objective lens, fine and accurate focus, offers large and clear images.Field of view is 396 feet at 1000 yards, with 5 left and right diopter ring. Marine Binoculars with foldable eyecups, provides better viewing

experience, suitable for adults with or without glasses.

【Binoculars with Compass and Rangefinder】It's illuminated compass built-in for direction location, with an internal rangefinder for calculate the distance and size of the object on the left eyepiece directly. Marine binoculars includes batteries(LR936/AG9), provides the maximum brightness of the image even in low light conditions.

【High Quality BAK4 Prism】Marine binoculars adopts high refractive BAK4 Prism that eliminates the stray light and improves color reproduction to

99.99%, applies FMC coating that reduces the reflected light in the binoculars objective lens and improves light transmission, image brightness and image sharpness.

【IPX7 Waterproof Marine Binoculars】It is designed with internal nitrogen filling and O-ring sealing, makes marine binoculars completely waterproof and able to float on the water. Dry nitrogen-purged and sealed prevent moisture damage from all weather conditions.

Specifications:

Magnification: 10x Objective lens: 50mm

Field of View: 396feet at 1000 yards

Prism System: Porro

Coating:FMC Prism Glass: BaK-4

Reticle: Internal rangefinder

Compass built in:Yes

Eyecups: Fold Down

Water/Fog Proof: Yes

Tripod Adaptable: Yes

Weight : 2.1 lbs

3 Colors For your choose

How to use the rangefinder?

Formula ranging method

(Note: 1.The actual height of the known object 2.Calculating unit:meter)

There are vertical scale and horizontal scale on the coordinates. The unit of small grid is 0.5 density, and the unit of large grid is 1 density. The calculation formula for distance measurement is:

Distance(m) = Target Height(m) * 100 / The density of the target in coordinates

Example: As shown in the picture, the height of the sailboats is about 5 meters, and the height measured on the scale is 3. (Turn the focusing wheel until the object can be seen cleary.)

5m * 100 /3 = 167m

2. Rangefinder measurement method

(Note: 1.The actual height of the known object 2.Calculating unit:meter)

1.Turn the focusing wheel until the object can be seen clearly.

2.Coordinate the horizontal baseline of the coordinates with the bottom line of the object, and measure the height and density of the object.(as the picture shows)

3.Rotate the measuring circle, align the arrow at the position where the density scale is 3, and the observation distance is about 160 meters according to the object's height of 5 meters.

Package Includes

1 x Binoculars

1 x Carrying Bag

1 x Harness Strap

1 x Eyepiece Cap

2 x Objective Lens Cap

2 x LR936/AG,cell batteries(Including the Binoculars)

1 x Instruction

1 x Color Box