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Boshile 10X50 Binoculars Waterproof Roof Prism Night Vision in Low Light BAK4 Telescope with Rangefinder Compass Army Green Fully Multi-coated #03405456

Boshile 10X50 Binoculars Waterproof Roof Prism Night Vision in Low Light BAK4 Telescope with Rangefinder Compass Army Green Fully Multi-coated
$ 99.99
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  • Color
    Army Green

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Brand

Boshile

Selling Points

1
Features: Waterproof
2
Eye Relief (mm): 23
3
Exit Pupil Diameter (mm): 7.1
4
Objective Lens (mm): 50
5
Field of View (m/m): 132/1000
6
Waterproof Level: IPX-7
7
Optical Coating: Fully Multi-coated
8
Tripod Mount: Yes

Specifications

Specification
Features Night Vision in Low Light, Waterproof, Roof Prism,
Structures Binoculars,
Eye Relief (mm) 23,
Battery N/A,
Exit Pupil Diameter (mm) 7.1,
Magnification 10,
Objective Lens (mm) 50,
Field of View (m/m) 132/1000,
Field Range (°) 7.5,
Eye Lens(mm) 25,
Prism Type BAK4,
Focus System Central Focusing,
Optical system Lenses,
Waterproof Level IPX-7,
Optical Coating Fully Multi-coated,
Eyecups Twist-up,
Tripod Mount Yes,
Material Metal,
Net Weight(kg) 0.8,
Listing Date 05/25/2015,
Magnification Range
Magnification 10x to 14.9x,

Photos

FAQs

  1. Q: What is night vision for the optical telescopes?
  • A:Night vision is the ability to see in low light conditions. Whether by biological or technological means, night vision is made possible by a combination of two approaches: sufficient spectral range, and sufficient intensity range.

    Night vision technologies can be broadly divided into three main categories: image intensification, active illumination and thermal imaging. The Optical telescopes use the principle of Image intensification to achieve the function of night vision.

    Image intensification magnifies the amount of received photons from various natural sources such as starlight or moonlight. Therefore, under low-light conditions, through the optical telescope we can only see the fuzzy image, except for the stars. We call it "Low Light Night Vision".

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