What Does 4×50 Night Vision Monocular? – In-Depth Guide

People often ask, what does 4×50 night vision monocular?

Let’s find out!

What Does 4×50 Night Vision Monocular?

4×50 night vision monocular is a compact, lightweight and easy-to-use night vision device. It has an effective range of up to 50 meters (164 feet) in good conditions. This means that it can be used for hunting, security, or other outdoor activities at night.

The device comes with a built-in rechargeable battery which allows you to operate the device without having to worry.

Bushnell’s NightWatch 4×50 night vision monocular

Bushnell makes high quality products for people who enjoy nature and want to get closer to it. Each product is designed by experts who understand the needs of nature lovers.

With Bushnell’s NightWatch IV 50×50 Night Vision Monocular, you get the benefits of high-quality night vision without having to carry heavy equipment. It’s easy to use and comfortable to hold.

With its sleek design, large 50mm objective, and integrated infrared light source, The NightWatch Monocular is an ideal choice for camping, cave exploration, wildlife observations, and surveillance.

Among these factors, there are many different variables that influence the distance at which an observer can detect objects using a night-time visual aid.

Variables That Influence The Distance

Under a full moon and clear sky, night vision devices can see farther than they would under a new moon and clouded skies. Different manufacturers use different methods for determining the maximum viewing distance and calculating the statistics.

When considering any type of nighttime imaging device, there are several key factors to take into account.

These include the intensity of the image produced by the device, its signal-to-noise (s/n) ratio, the level of magnification provided by the device, its resolution, and the clarity and light transmission efficiency of the optics used.

Regardless of whether the mechanism protects against a sudden burst of bright lights, bright lights in any form are not good for the longevity or the quality of an imaging intensifier tube.


  • Intensifier Tube1st Generation
  • Yes, infrared illuminant
  • Magnification4.0x
  • The angle of view is 13.3 degrees
  • Field-of-view @ 1000 yd = 700 ft (230 m at 1000m)
  • Minimum Focus Distance5.0′ 1.5 m
  • Objective lens diameter 50mm
  • Power Source 2 AA batteries
  • Waterproofing None
  • Dimensions7.9 x 3.5 x 2.3″ (200 x 90 x 59mm) LxWxH
  • Weight18 oz (504g)
  • Package Weight 1.5 lb
  • Box dimensions: 9.85 inches by 6.75 inches by 3.8 inches

Sightmark Ghost Hunter 4×50 Night Vision Monocular

Sightmark Ghost Hunter® 4×50 Night Vision™ Monocular provides a magnification of up to 4 times through a 50 mm objective and is ideal for long-term night vision use in applications such as shooting sports (airsoft, paintball, etc.), search and recovery, wildlife observation, and hunting.

The monocular is a compact device that powers up quickly so that you don’t lose track of anything important. It has an integrated infrared illuminator for stealthily scouting your target at night.

With its dual operation mode, the Sightmark GhostHunter 4×50 Night Vision Monocular can be operated either passively (without IR illumination) or actively (with IR illumination).

It has a high degree of versatility allowing you to either operate it independently or attach it to a weapon. You can even attach it to a tripod so you can continue your surveillance operations for longer periods.

Constructed from composite material, the Sightmark GhostHunter 4×50 Night Vision Monocular is durable and provides an excellent choice for recreational viewing as well as for professional surveillance and reconnaissance. A comfortable and lightweight design makes it easy to use.


  • It offers a magnification of up to four times using a 50mm diameter objective, which makes it ideal for long-duration surveillance in various fields including shooting sports (airsoft, paintball, etc.) and wildlife observations.
  • To ensure that you don’t miss any important activities, designed to get you going fast so that you don’t miss anything.
  • Allows you to discreetly scout your target at any time of day using an integrated infrared (IR) light source.
  • Allows for versatility by integrating a versatile mounting system that allows you to use the monocle as an independent sight or attach it to a weapon.
  • It allows you to attach the monocle onto a camera mount via a 1/4″-20 screw, allowing you to carry out long-term surveillance operations.
  • Constructed from durable composite plastic
  • Excellent choice for both recreational viewing and professional surveillance and reconnaissance.
  • Provides enhanced comfort via an ergonomic design
  • You cannot export this product from the United States of America. It is controlled by the U.S. Department of State.
what does 4x50 night vision monocular

What Does 4×50 Night Vision Monocular?


What is the NightWatch monocular?

The Monocle is a compact, lightweight and versatile nighttime vision system that allows you to view objects clearly in total darkness. Its innovative design features a large lens diameter of 0.14″ which provides excellent image quality at low light levels.

The NightWatch monocle has a wide field-of view of 40 degrees horizontally by 30 degrees vertically and a fast eye-relieve of just 2.5mm. It’s perfect for both close-up and long-distance views.

The NightWatch monocular has an integrated infrared illuminator that produces bright, white light for easy object and person identification in dark environments.

What is the use of night vision devices?

Night-time cameras can be useful for seeing things in dimly lit areas, such as at night, or during twilight. They can also be useful for law enforcement officers and military personnel who need to see in dark spaces without being seen themselves.

Can Bright Light Damage Intensifier Tubes?

Yes, bright lights will damage the intensifier tube. This is why we wear goggles when operating night vision equipment.

You should be careful not to damage the tube if you’re worried about breaking it. If you want to spend less, you could buy a cheaper replacement tube online.

How to tell if an intensifier tube needs replacing?

To find out whether your intensifier tubes need replacement, you should first examine them. You can do so by shining a light into the tubes themselves. If they’re cracked, then they probably need to be replaced.

Secondly, if the light doesn’t appear straight, then the tube may need changing.

Third, you can check if the inside of the bottle has any cracks. If there are cracks, then the bottle needs to be replaced.

Fourth, you can look at the tubes using a magnifier. If they’re dirty, then they need replacing.


We hope that this guide has been useful. If you have any questions please let us know in the comments section below!


  • John Moses

    John is the Editor in Chief here at The Outdoor Stores. His area of expertise ensures that there is no one better to suggest which rifles are most suitable for your hunting experience. He is also available for you to contact him personally to discuss the types of animals you want to hunt and the terrain you will be hunting on. Feel free to read his posts for expert opinion on Rifles, Scopes, Rangefinders, Bonoculars and Monoculars.

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