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Night Vision Binoculars

Updated on October 29, 2010

How to Choose Night Vision Binoculars

Selecting night vision binoculars is one of those things that leaves a lot of people confused. It is important to be familiar with numbers like 7x35 when you go out to buy a pair. You will also need to be able to keep in mind any special features or any of the specialized types like digital binoculars or marine binoculars. The most important thing to making the best choice is to consider how you intend to use them, and then everything else should come together nicely.

By far the two most important things that you want to consider when you are choosing night vision bincoculars are the magnification and the lens diameter. A number like 8x42 will be clearly marked on the binoculars to let you know what this is. Magnification is determined by the number that comes first and that is simply how much closer an object will appear. The number you see second will tell you how big the lens is in millimeters. The larger the lens the bigger your field of view is going to be.. Ideally you would like to buy binoculars where these numbers are as large as possible but many times that isn’t always the smartest plan. For example a high magnification will make it difficult to pick up things that are moving, not really a good choice for something like watching sports. There is a great field of view if you have a big lens diameter but it comes at the price of binoculars that are large and heavy, not something you want in many cases.

The brightness of a pair of binoculars is determined by the size of the exit pupil and this is another big factor that will need to be considered. You can figure out the size of the exit pupil by dividing the diameter of the lens by the magnification. More light will reach your eye if this is a large number. This is ideal if you are using your binoculars at night but it can be a problem if you use them in bright sunshine. For use in the daytime or all purpose binoculars an exit pupil size of 3 to 5 mm is a good choice but for use at night you are going to want an exit pupil of at least 7 mm.

There are a couple of other factors that you are going to have to consider but these are for the most part a matter of personal preference. Factors like how the night vision bincoculars focus or what type of prism is used can be important to some people while others aren’t going to care. You will want to keep in mind any of the specialized types of binoculars that may need like water proof binoculars or stabilized binoculars. The best way to make sure that you get the best choice for your needs you will want to be sure that you think about how you are planning to use your binoculars.


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