Day and night monocular are a kind of monocular telescope that can be used in both day and night. It uses advanced technology to capture clear images in low light or no light conditions. It can be used for outdoor activities, wildlife observation, hunting, camping, travel, security and other occasions. It is a very practical and portable observation tool.

The purpose of this article is to introduce you to the basic knowledge and buying guide of day and night monocular, to help you understand its working principle, performance indicators, brand choices and other information, so that you can choose a suitable product according to your needs and budget. This article will be divided into three parts, which are:

  • Basic principles and categories
  • Main performance indicators and evaluation criteria
  • Common brands and models

I hope this article can provide you with useful references and suggestions.

Basic principles and categories

Day and night monocular are a kind of monocular telescope that can be used in both day and night. It uses advanced technology to capture clear images in low light or no light conditions. The basic principle can be divided into two types: optical magnification and digital magnification.

Optical magnification refers to the use of optical components, such as lenses and prisms, to collect and magnify visible light and infrared light. This technology is adopted by traditional night vision devices, which can convert weak ambient light into electronic signals, then enhance the signals through a special vacuum tube, and display a green image on a fluorescent screen. The advantages of this technology are high image clarity, no delay, low power consumption. The disadvantages are heavy equipment, high price, cannot be used during the day, otherwise it will damage the vacuum tube.

Digital magnification refers to the use of digital components, such as image sensors and displays, to collect and magnify visible light and infrared light. This technology is adopted by new night vision devices, which can convert ambient light into digital signals, and process and enhance them through software, and display an image on a color or black-and-white display. The advantages of this technology are light equipment, low price, can be used in both day and night, and can take pictures or videos. The disadvantages are low image clarity, delay, high power consumption.

According to different technical principles, the following types can be divided:

Optical night vision monocular: night vision monocular using optical magnification technology, usually divided into four generations, from the first generation to the fourth generation, the performance gradually improves, the price gradually decreases. The first generation is the earliest night vision monocular, which requires external infrared illuminator to work. The second generation is based on the first generation and adds a microchannel plate to improve image quality. The third generation is based on the second generation and uses more advanced photocathodes and gas doping to improve image brightness and clarity. The fourth generation is the latest night vision monocular, which uses an automatic gate to adapt to different light conditions.

Digital night vision monocular: night vision monocular using digital magnification technology, usually divided into two categories, one is digital monocular using visible light and near-infrared light, the other is digital monocular using far-infrared light or thermal imaging. The former can work in weak ambient light, but requires external infrared illuminator to work in complete darkness. The latter can work in complete darkness, but cannot distinguish colors and details.

Day and night dual-use monocular: monocular that can be used in both day and night, usually using digital magnification technology, and equipped with switching mode function. This kind of monocular can automatically or manually adjust the image effect according to different time and occasions, and can take pictures or videos.

Main performance indicators and evaluation criteria

The performance of day and night monocular depends mainly on some key indicators, which can reflect its magnification ability, field of view range, image quality, durability and portability. When choosing day and night monocular, we need to consider these indicators comprehensively according to our needs and budget, and refer to some professional evaluation criteria. Here are some common performance indicators and evaluation criteria:

Magnification: magnification is the degree of enlarging the target object, usually expressed by a number, such as 8x, 10x, etc. The higher the magnification, the larger and clearer the target object looks, but it also leads to a smaller field of view range, worse image stability, and increased operation difficulty. The lower the magnification, the smaller and blurrier the target object looks, but it also leads to a larger field of view range, better image stability, and reduced operation difficulty. Generally speaking, magnification between 6x and 10x is more suitable, which can meet various observation needs.

Objective diameter: objective diameter is the diameter size of the front lens, usually expressed in millimeters, such as 40mm, 50mm, etc. The larger the objective diameter, the lighter can be collected, improving the brightness and clarity of the image, especially in low light or dark conditions. The smaller the objective diameter, the less light loss can be reduced, reducing the noise and distortion of the image, especially in bright or daytime conditions. Generally speaking, objective diameter between 25mm and 50mm is more suitable, which can adapt to different light conditions.

Field of view angle: field of view angle is the maximum angle range that can be covered in horizontal or vertical direction, usually expressed in degrees, such as 6°、8° etc. The larger the field of view angle, the wider the scenery or animals can be seen, making it easier to find or track moving objects. The smaller the field of view angle, the more detailed details or features can be seen, making it easier to identify or observe stationary objects. Generally speaking, field of view angle between 5°and 10°is more suitable for various observation purposes.

Resolution: resolution is the ability to display the smallest details in the image, usually expressed in line pairs / millimeter (lp / mm). The higher the resolution, the clearer, sharper and more realistic the details in the image are. The lower the resolution, the more blurred, rough and distorted the details in the image are. Generally speaking, resolution above 30lp / mm is more suitable.

Weight: weight is the size of its own weight, usually expressed in grams or kilograms. The lighter the weight, the easier it is to carry and operate, and more suitable for long-term use or mobile observation. The heavier the weight, the more stable and durable it is, and more suitable for fixed location or short-term use. Generally speaking, weight between 200g and 500g is more suitable.

Size: size is the size of the external dimensions, usually expressed in millimeters or centimeters. The smaller the size, the more portable and concealed it is, and more suitable for carrying or covert observation. The larger the size, the more comfortable and stable it is, and more suitable for handheld or tripod use. Generally speaking, size between 10cm and 20cm is more suitable.

Battery life: battery life is the length of time that can work continuously after one charge or battery replacement, usually expressed in hours. The longer the battery life, the more energy-saving and reliable it is, and more suitable for long-term or continuous use. The shorter the battery life, the more energy-consuming and unstable it is, and more suitable for short-term or intermittent use. Generally speaking, battery life above 2 hours is more suitable.

In addition to the above performance indicators, there are some evaluation criteria that can be referred to, such as waterproofness, fog-proofness, shock-proofness, accessory equipment, after-sales service, etc. These evaluation criteria can be selected and compared according to different usage environments and personal preferences. In general, choosing a good day and night monocular requires considering various factors comprehensively and making trade-offs and decisions according to your own needs and budget.

Common brands and models

There are many different brands and models of day and night monocular on the market, each with its own characteristics and advantages, as well as different prices and reviews. When choosing, we need to compare different products according to our own needs and budget, and refer to some professional reviews and recommendations. Here are some common brands and models, as well as their brief introductions:

WildGuarder Guarder1 Night Vision Monocular: This is a high-end digital night vision monocular that can be used in both day and night, and can take pictures and videos. It has 6x optical magnification function, 50mm large objective lens, and high-definition color display screen. It also comes with a powerful infrared illuminator that can observe distances over 350 meters in complete darkness. It can also be connected to a computer or TV via USB to view or transfer images. It weighs 1.2 pounds, measures 8.5 x 3.5 x 2.5 inches, and has a battery life of 4 hours. It is considered one of the best night vision monocular.

Bushnell Equinox Z2: This is a mid-range digital night vision monocular that can be used in both day and night, and can take pictures and videos. It has 4.5x optical magnification function, 3x digital magnification function, 40mm objective lens, and high-definition black-and-white display screen. It also comes with an adjustable infrared illuminator that can observe distances over 200 meters in complete darkness. It can also be connected to a smartphone or tablet via Wi-Fi for remote control and image sharing. It weighs 0.8 pounds, measures 6.5 x 3.2 x 2.1 inches, and has a battery life of 6 hours. It is considered one of the most cost-effective night vision monocular.

Night Owl NOXM50 Night Vision Monocular: This is a low-end optical night vision monocular that can only be used at night and cannot take photos or videos. It has 5x optical magnification, 50mm objective lens, and green phosphor screen. It also comes with a small infrared illuminator that can observe up to 100 meters in dim light. It weighs 0.9 pounds, measures 7.8 x 3.9 x 2.4 inches, and has a battery life of 45 hours. It is considered one of the best night vision monocular for beginners or budget-conscious users.

Solomark Night-Vision Monocular: This is a super-cheap digital night vision monocular that can be used both day and night and can take photos and videos. It has 2x optical magnification, 7x digital magnification, 16mm objective lens, and color display screen. It also comes with a small infrared illuminator that can observe up to 100 meters in total darkness. It can also be connected to a computer or TV via USB to view or transfer images. It weighs 0.4 pounds, measures 5.8 x 4 x 1.85 inches, and has a battery life of 5 hours. It is considered one of the best night vision monocular for children or recreational users.

ATN NVM14-4: This is a professional optical night vision monocular that can only be used at night and cannot take photos or videos. It has 1x optical magnification, 27mm objective lens, and green phosphor screen. It uses the fourth generation of night vision technology, which can provide high-definition and high-contrast images in very low light conditions. It also comes with an automatic brightness control that can adapt to different light conditions. It can also be converted into head-mounted, handheld, or weapon-mounted by accessories. It weighs 0.75 pounds, measures 4.7 x 1.9 x 2.7 inches, and has a battery life of 50 hours. It is considered one of the best night vision monocular for professional or military purposes.

The above are some of the common brands and models of day and night monocular, as well as their brief introductions. When choosing, we need to compare different products according to our needs and budget, and refer to some professional reviews and recommendations. We hope this article can provide you with useful references and suggestions.

FAQ

Q: What is a day and night monocular?

A: A Day and night monocular is a type of binocular telescope that can be used both day and night. It uses advanced technology to capture clear images in low-light or no-light situations.

Q: What are the uses of a day and night monocular?

A: A Day and night monocular can be used for outdoor activities, wildlife observation, hunting, camping, travel, security, and other occasions. It is a very practical and portable observation tool.

Q: What are the performance indicators of a day and night monocular?

A: The performance indicators of a day and night monocular include magnification, objective lens diameter, field of view angle, resolution, weight, size, battery life, etc. These indicators can reflect its magnification ability, field of view range, image quality, durability, and portability.

Q: What are the brands and models of day and night monocular?

A: There are many brands and models of day and night monocular, such as WildGuarder Guarder1 Night Vision Monocular, Bushnell Equinox Z2, Night Owl NOXM50 Night Vision Monocular, Solo mark Night-Vision Monocular, ATN NVM14-4, etc. They have their own features and advantages, as well as different prices and ratings.

Q: How to choose and buy a day and night monocular?

A: When choosing and buying a day and night monocular, you need to consider the technical principles, performance indicators, brand choices, etc. of the day and night monocular according to your needs and budget, and refer to some professional reviews and recommendations. You can find more relevant content and suggestions in this article.

 

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