Monday, February 6, 2017

Night Vision Goggles vs Thermal Imaging: What are the differences, and which is best?

Night Vision Goggles vs Thermal Imaging: What are the differences, and which is best? was first published to

What is the difference between Night Vision and Thermal Imaging?

what is the difference between night vision vs thermal imagingWhen you are trying to see different items at night you may find that it is quite a bit harder than what you think. This is when you may start to turn to what items can help you in seeing what is going on around you. Some of these items can include night vision and thermal imaging. The problem is you should know about some of the differences between the night vision and thermal imaging devices that you can use. By knowing this difference it will be easy for people to get the right product to use. The best night vision goggles are the items that are going to take and amplify the available light that is in an area. When you look at this it makes it easier for you to look through the lenses and be able to see what you want to see. So this will make it easier for you to actually be able to see the definition of everything you are looking at. This in turn makes it easier to move and not run into anything that is present in the area. Thermal imaging is going to be something that is going to be based off of the heat signatures of the items that are around. Everything is going to put off some form of heat. When this heat is present it will make the shapes present and this makes it easier for people to see the items. So people will have a chance to get to see the items and know they are going to have a great time because they can see everything that is giving off light. The downside is this only shows the heat signatures based off of colors and the definition that is present is completely missing. Being able to see in the middle of the night is quite a bit harder than what people think. However, if people get some assistance it is very easy for people to see and know they are going to have a chance to see what is going on. This is when people should know the difference between night vision and thermal imaging. By knowing this difference it will be easy for people to get the right item and know they are going to be able to use it for the purpose they want to use it for and know it will help them see what they want to see.

More reading about night vision binoculars and googles


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Who invented night vision goggles & binoculars?

The following post Who invented night vision goggles & binoculars? is available on The Binoculars Guy blog

Discover The Inventor Of Night Vision Googles

Night vision seems like it is a thing of modern times. However, what people need to realize is they are actually quite a bit earlier than what they think and did not originate in America, like so many people want to believe. In fact, the answer on who invented these may shock some people because the inventor did not even come from one of the powerhouse countries during World War II. Instead, the night vision google inventor came from the country of Hungary and was no more than a simple physicist. Kalman Tihanyi - night vision goggle inventorThe physicist was named Kalman Tihanyi and he is the one who discovered that you can have lights that are infrared sensitive. The application that he put this in place for, was for military purposes and it was used on a larger scale of an electronic type of television that the British would have installed on their anti-aircraft batteries in 1929. So it is easy to see that this is a long lasting solution that has been refined over the years and made into the application that is familiar the world over today. As far as the night vision binoculars and googles go, they were brought into the modern look by the German army before the start of World War II. The company AEG would be the one that would start to development of the googles in 1935 and by 1939 they were refined enough that the German army was able to start to use them on their equipment. The first pieces were the devices and telescopic rangefinders. These would be mounted on the Panther tanks, which gave the German army a distinct advantage at the onset of the war and made it possible for them to move and attack at night, when most of the other armies would not be able to counterattack very well. Being able to explore the history of night vision googles is very interesting. In fact, sometimes it is going to make people think they are going to get the right information on the history of the pieces. By knowing about the inventor of the night vision googles and knowing just how old they are, it will be easy for people to see these are quite a bit older than what most people think. Also something that people may be pleasantly shocked about is the fact the inventor was not American and was actually Hungarian and used first by the German Army.

More night vision articles

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Night Vision Goggle Manufacturers: Who to trust with your hard earned money

The following post Night Vision Goggle Manufacturers: Who to trust with your hard earned money was originally published to The Binoculars Guy blog

When you look at top-rated night vision binoculars and goggles you may not realize that they are not manufactured by a lot of the companies that you are familiar with. By knowing about some of the manufacturers of this product in America, it is going to be easy to get the right night vision goggles and know they are going to work for your needs, but also last a longer time than what you think because they are made in America and this means the manufacturer has pride in what they are doing.

BAE Systems

BAE Systemsbae systems - night vision binocular manufacturer is a great company that has been around for years and actually is known under the name British Arms, but it is a company that has a lot of plants based in America. Some of those plants are going to manufacture the higher quality night vision goggles that will make it easier for you to get the right feel for the equipment and know that it is going to last a long period of time.

DRS Technologies

DRS Technologiesdrs technologies - night vision goggle manufacturer is a company that a lot of people may have never heard of before and that is because they are not a large company like BAE or some of the other companies. However, this is a company that has managed to specialize in the equipment that is going to be used on vehicles, handheld models, or even have the great looks that people want to have.

L3 Warrior Systems

L-3 Warrior Systemsl3 warrior systems - maker of night vision binoculars and goggles is the world leader in the development of technologies that have been able to support the night vision goggles and keep them working for a long period of time. However, what people need to realize is this is a company that has been able to develop these over time. This has made it easier for people to get the latest advances in technology and know these are going to last for a long period of time because of the testing the companies put the items through.

Wrapping up night vision binocular manufacturers

Having a chance to use night vision goggles can be exciting. However, their are points in time when people are going to need to have the proper manufacturer of these to help them in getting the right items. By knowing about the night vision binocular manufacturers that make these in America, it will be very easy for people to see this is going to be simple to select the best goggles around to use. Related Night Vision Reading

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Thursday, January 19, 2017

Which night vision generation is right for you?

Which night vision generation is right for you? Find more on: The Binoculars Guy

PEO_ANAVS-6_NVG Over the years technology used in night vision equipment has evolved significantly, with the price decreasing and the performance increasing. Since then several different generations of night vision equipment has been developed. Most commercially available night vision equipment is rated by 'Generation.' It is crucial to note which Generation (Gen) you are looking at when comparing various device since they indicate what level of technology the unit uses. Were you aware of the fact that the first time that Night Vision was used was during World War II and during the Vietnam War was used extensively?

Gen 3 Night Vision

These night vision glasses use gallium-arsenide, for the photocathode, and a microchannel plate for gain. Their sale in Europe is restricted to the military and government departments.


Note: All of the Gen-2+ tubes are made in Russia, since US technology switched to Gen-3 from Gen-2, and bypassed Gen-2+. Because of Russian legislature, these days the maximum sensitivity that is allowed from Russia for export is 350 microamperes per lumen. Lun'_night_vision_monocularThe Gen 2+ tube improves upon the Gen 2 tube. It has a 300-600 microamperes per lumen sensitivity and 22,000-25,000 times light amplification. In the center resolution is 39-50 line-pairs per millimeter and there are 5,000 lifetime hours. The Generation 2+ devices come with automatic gain control. This regulates the image's brightness depending on what the outside light conditions are. Also, these units have images that are virtually distortion free even at the edges and come with flash protection. The Military used these units until recently. However, they have become more widely available and are now used by others as well. Note: The U.S. Department of Commerce controls the export of any Generation-II or II+ model outside of the US. An End-User Certificate must be submitted in order to get approved.

Gen 2 Night Vision

These devices use a special electron amplifier called Micro Channel Plate (MCP), which is one of the ways these devices are different from the 1 and 1+ generations. There are two kinds of intensifier tubes with MCP that are available: the 18mm and 25mm. Generally speaking, the larger that the diameter is, the more efficient the tube will be. However, a larger night vision unit is also required when it is assembled. Light is amplified by Generation 2 night vision equipment at around 20,000-30,000 times. This higher amplification makes them excellent to use in low light condition. Here is an example to give you a sense of what is possible. It is a dark overcast night, and you see a man 90m away, with 600 meters from a full moon and 300 meters from starlight. There is very little distortion, making them well suited to use for still or video cameras. Gen 2's work very well for observing wildlife for prolonged periods of time from a distance in addition to closely observing small animals. Also, the tube has an increased lifetime (4,000-5,000 hours, compared to Generation-I and I+with only 2,000-2,500 hours) and an increased sensitivity as well at 300-320 microamperes per lumen. Due to how costly Generation 2 night vision is, it is mainly used for professional applications and by law enforcement.


Gen 1+ tubes further improve on the Generation-I tube by having a fiber optic plate that is installed on the back or front of the tube. That results in image resolution being dramatically improved and also helps to prevent distortion, particularly at the edges. The light amplification that is provided is 900 to 1,000 times, and sensitivity is increased to almost 300 microamperes per lumen. Resolution is 50 line-pairs per millimeter in the center. It is very important to note that the designation I+is used incorrectly by some manufacturers to describe their Generation-I devices. A good Generation-I+ device will cost the same as a low-grade Generation-II device.

Gen 1 Night Vision

Generation 1's were initially introduced during the Vietnam war. The are the least expensive generation of night glasses. It is possible these days to find fairly inexpensive night vision monoculars, binoculars, and googles that come with this technology. Each Generation-I device uses a vacuum tube that has a 120-280 per lumen photo cathode sensitivity. These tubes have a light amplification that is 120 to 900 times what ambient light is. Resolution is 20 to 38 line-pairs per millimeter in the image's center. Usually, they have roughly 80m maximum range and frequently have a built-in basic infrared illuminator. Usually, Generation 1 night vision devices have higher power requirements and may emit a low-level, high-pitch noise. The products are not well suited for photography since although they are clear in the middle of the view, frequently the quality drops off at the edges of an image. The are quite useful for watching wildlife at relatively close ranges and have many different practical applications. One thing that is quite confusing is that even with Generation-I tubes, often there can be a wide disparity in performance. All of the tubes are graded and evaluated according to their performance and quality as part of the manufacturing process. They are then sold at prices that are significantly different depending on their image clarity and light amplification. This is reflected of course in the Night Vision device's final price. Luna Optics and other quality manufacturers use only the highest intensifier tube grades, meaning that although their devices have a tendency to cost more than others, you can be sure you are getting a quality product when you buy one.

Gen 4 Night Vision?

The military does not officially accept night vision Generation 4 technology, although night vision product manufacturers use this term more frequently. It is also called Gated and Filmless image intensifiers. Filmless refers to removing the ion barrier film that Generation 3 image intensifier had added to them which results in the image having less "snow." Gated relates to a "gated" power supply. This makes it possible also to use night vision devices in the daytime. Also it minimizes halo in bright light sources and improves image resolution. Generation 4 overall is said to have a view that is even sharper than Generation 3 night vision as well as an even greater ability to be able to see during very dark conditions. However, it also results in higher prices. Generation 4 Monocular cost around $5,000 to $6,000. Be sure to also check out my night vision binocular reviews here.

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Tuesday, December 13, 2016

Vortex Fury HD Laser Rangefinder Binoculars Preview

Vortex Fury HD Laser Rangefinder Binoculars Preview Find more on:

Vortex surprised me with the announcement of the new Fury HD Laser Rangefinding Binocular recently. Claiming to be two devices in one (high definition binocular + angle compensated rangefinder) it certainly got me excited. With optics that compare with the Viper HD range, you just know this will be a high performance bin. According to Vortex, this compacyt reflective targets will give accurate readings up to 1600 feet, while distance readings on large animals will be accurate up to 1200 feet in good conditions. The rangefinder controls are situated on the right hand side, making it easy to carry your rifle or bow in the other hand. C:\Users\dss\SkyDrive\0000. Niche Sites\0.\0. Content\Vortex Fury HD Laser Rangefinding

Vortex Fury HD 10x42 Specifications

The 10x42 comes with a field of view of 314.4ft @ 1000 yards with a close focus of 20 feet. Weighing in at 31.8 ounces, it measures 5.75 in x 5.9 in.   Vortex Fury HD Laser Rangefinder Binoculars Specs

How good is the rangefinding capability?

We will have to wait and see how good the built-in rangefinding really is, but from the distance ranges mentioned, it sounds like the Fury is going to be a beast. It also comes with a intuitive display with a simple-to-use menu (unlike so many other rangefinders), and the display is clean and easy to read. It features HCD (horizontal component distance) and LOS (line of sight) modes. HCD is for angle compensated ranging, while LOS will display the actual line of sight range to your target. A very handy scan mode will show continous ranges as you scan across an area or when you are tracking a moving animal. Ranges can be set to display in yards or meters.


The Fury HD comes with standard Vortex VIP warranty, which is, in my opinion, one of the best warranties by any optic company. You can rest assured that if something goes wrong with your Fury HD, Vortex will repair or replace it at no cost to you. What makes this warranty ever better in this case, is that the Fury's electronics are also fully covered.

Launch Date

The Fury HD is not available in stores or online yet. The expected launch date is in the summer of 2017.

Where to buy at the best price?

As mentioned above the Fury HD Rangefinding Binocular is not available yet, but it will be on sale at the usual outlets, from Cabelas and Bass Pro Shops to any reputable outdoor store in your area. As in most cases, I would recommend checking out the Amazon pricing. I typically find Amazon offer good prices on optics and with the service levels and free delivery, they are my recommendation when buying the Fury HD.


While pricing hasn't been confirmed yet, I believe this rangefinder binocular will be in the $1599 price range.


Let me know if you are as excited as I am about the upcoming launch of these bins.

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Tuesday, November 22, 2016

Vortex Razor AMG UH-1 (Codename: Huey) Preview

The blog post Vortex Razor AMG UH-1 (Codename: Huey) Preview is available on Owen

Vortex Razor® AMG® UN-1 Huey Vortex Optics have revealed a sneak peek of their Razor® AMG® UH-1. Code-named Huey, this holographic piece of technology is weapon mountable, and on the right is the first picture publicly released. The Razor AMG UH-1 sight consists of an aluminium chassis and features far fewer moving parts when compared to more traditional holographic sights. This makes for a more durable piece of technology. Power comes from the included CR123A battery, but can also be from running LFP CR123A's. What I really like, is how these can be recharged on-board, through the use of the waterproof micro-USB port that can be found on-board. What makes this sight stand out even more, is that there is virtually no forward signature meaning the shooter is the only one to see the new EBR-CQB reticle. This is unlike any other holographic or red dot sight on the market. Keep your eyes on this page for more updates on launch dates, pricing, where to buy and reviews on the Vortex Razor AMG UH-1.

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Wednesday, November 16, 2016

Digiscoping 101: What is it, and how does it work?

Digiscoping 101: What is it, and how does it work? is courtesy of

what-is-digiscoping-and-how-does-it-workDigiscoping is taking photographs with a digital compact camera through the eyepiece of a telescope. This method wasn't - as you might believe - developed by photographers, but was discovered accidentally by nature observers. The development of high-quality compact digital cameras since the late 90s makes it possible to take high-class pictures through high-end telescopes using quite a simple technique. The main aim is in "freezing" and storing wonderful moments, which have previously "only" been observed through a scope. Easy documentation of different species is just as important an application. Thanks to long focal lengths (high magnification factors) it is also possible to photograph sensitive species from a great distance without disturbing them, or to take close-up photographs of distant objects that are difficult to reach. With a great deal of practice, some test runs and time spent studying the theory in depth, it will also be possible to take exceptionally sharp images in a quality which comes close to images taken with expensive professional photography equipment (SLR cameras with tele-converters).

Why is digiscoping so interesting?

  • Added value for your telescope: not just viewing but taking photographs too.
  • Quality images of very distant subjects.
  • No need to buy film ever again - storage media is reusable.
  • Images can be checked and enjoyed immediately after capture.
  • Very cost-effective compared to expensive SLR cameras and tele-converters
  • Presentation of the images on TV or using a data projector (slide shows)
  • No loss of quality when copying and transferring data.
  • Editing images later is easy.
  • Prints can be produced and photos sent via email immediately.

Why does Digiscoping Work?

A telescope scope has the basic function of bringing a magnified image to the observer's eye. Light enters the large objective lens at the end of the scope and comes out through the eyepiece as a round column of light called the exit pupil. It is this column of light that the camera will be photographing so it must be centred exactly over the light column or a condition called vignetting or shadowing, which spoils the picture, will occur. The digital camera mimics the human eye to a certain extent in this manner. Related reading: Digiscoping Equipment | Tips and Tricks | Digiscoping Cameras

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