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130EQ 130mmTelescopes Reflector Manual EquatorHigh Definition Waterproof Fogproof Generic Carrying Case Roof Prism Wide Angle Eagle #04499347

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130EQ 130mmTelescopes Reflector Manual EquatorHigh Definition Waterproof Fogproof Generic Carrying Case Roof Prism Wide Angle Eagle
$ 179.99
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Selling Points

1
Compatibility: Space/Astronomy
2
Type: Astronomical Telescope
3
Features: Waterproof Wide Angle
4
Exit Pupil Diameter (mm): 4.2
5
Objective Lens (mm): 130
6
Focal Length(mm): 650

Specifications

Specification
Compatibility Space/Astronomy,
Type Astronomical Telescope, Normal,
Material Aluminium Alloy, PU Leather, Plastic, Metal,
Features Roof Prism, Carrying Case, Generic, Fogproof, Waterproof, High Definition, Spotting Scope, Eagle Vision, Wide Angle,
What's in the box 1 Lens Cleaner, 1 User Manual, 1 Bag,
Structures Telescopes,
Exit Pupil Diameter (mm) 4.2,
Resolution 1.1,
Magnification 325,
Objective Lens (mm) 130,
Field Range (°) 1.4,
Eye Lens(mm) 12,
Lens Diameter(cm) 12-20MM,
Optical system Reflector,
Focal Length(mm) 650,
Finderscope Mode 6X30,
Temperature 0-50,
Net Weight(kg) 11.8,
Listing Date 10/29/2015,
Telescope
Model 130EQ,
Length (cm) 63,
Eyepiece K25mm, K4mm, K10mm,
Operation System Manual Equator,
Magnitude (astronomy) 11,
Magnification Range
Magnification 20x & Up,

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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