Used Binoculars

Sunday, September 27th, 2009 at 11:33 pm

Used Binoculars

Binoculars are an excellent tool to help bring the action up close and personal, whether observing birds in a nature preserve, football players in a stadium, or your favorite rock star at a concert. Yet different uses require different types of used binoculars. With hundreds of different models to choose from, it can be difficult to figure out the best pair to buy. Yet with the understanding of a few basic concepts, choosing a pair of used binoculars can be made much easier. Let's take a look at some of the most important concepts when choosing a pair of binoculars.

Magnification - Magnification is the first number in a pair of binoculars. So when you see a pair of binoculars labeled as a 10x50, the magnification is 10x, or 10 times. That means that the binoculars will make the object appear 10 times closer.

So is more magnification always better? Not necessarily. When you increase the magnification, the object will appear closer, but the image will shake more due to the magnification and the field of view will get smaller. Most binoculars are between 7x and 10x. As a general rule, if you are going to be closer to the subject, choose a lower magnification. If you are further away, choose a higher magnification. So if you have excellent tickets to your favorite football team, go for something in the 7x range. If you are a bit higher and further back, then choose a higher power around the 10x range.

Aperture - Aperture is simply the size in diameter of the front objective (in millimeters). The front objective is the lens (usually glass) in the front of the binoculars. If you look at our example of the 10x50 binoculars, the aperture is the number 50. So the 10x50 binoculars have a magnification of 10x and an aperture of 50mm. The bigger the aperture, the more light the binoculars will gather and the brighter the image will be. Also, a larger aperture will provide greater resolving capabilities providing greater detail. However, a larger aperture will also make the binoculars larger, heavier and more expensive.

So what is the best size to choose? Think about where and when you will be using the binoculars. If you are using the binoculars in a low light situation, such as at nighttime or in a darkened theatre, then go for a larger aperture in the 35mm to 50mm range. If you will be in daylight, then you can do fine with something in the 20mm to 35mm range.

Also make sure to think about portability. If the binoculars have to go into a purse, pocket or other small area, then go with a smaller aperture in the 20mm to 30mm range. If portability is less of a factor, then a full size pair in the 35mm to 50mm range will provide a brighter, higher resolution image.

There are a number of additional concepts and specifications for binoculars, but magnification and aperture are the two most important. Understanding these two factors can make choosing a pair of binoculars much easier. So whether you are looking for binoculars for hunting, sports, birding, boating or any other use, you are now that much closer to finding the right pair of binoculars.

NEW TASCO 7x50mm Waterproof Marine Binoculars OS19
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7x50 MARINE BINOCULARS W RANGEFINDER RETICLE by BARSKA
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Avon Marine Binoculars Decanter
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KM 836 TACTICAL Military Marine compact Binoculars
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Vintage Avon Marine Binoculars Decanter Black Glass
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PERRINI Power 60X50mm Military Marine View Binoculars
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How To Buy Binoculars

Sunday, September 27th, 2009 at 7:32 pm

Comments (3)

How To Buy Binoculars

In the most basic sense, binoculars are two telescopes that have been attached to each other for the purpose of magnifying images. They are used for viewing nature, seeing sporting or cultural events up close, and are frequently used in astronomy. Unlike telescopes, binoculars require the use of both eyes to make a sharp and focused image. To know the variations of| binocular models and how much magnification that each model provides will guide you to select the right binoculars for your needs.

When choosing new binoculars, you?ll need to take multiple aspects into consideration to make sure you make the correct choice. First, you?ll need to decide what amount of money you will invest. Binoculars comes in many price levels and you should choose a pair that is within your budget. If you decide to go for a pair that is more expensive than your budget, taking the time to save up for those binoculars could be the best solution. Since magnification abilities vary with price range, it isn?t a good choice to try to go with a lower price and not select the binoculars that has the capabilities that you need. Doing so could mean that your binoculars isn?t powerfull enough to provide you with the quality that you require.

Once you?ve set your price range, you?ll also want to consider how much magnification you require. It?s important to understand that the higher the magnification, the more you will need to place the binoculars on a tripod, as any amount of movement will cause the image to become unclear. If you are planning on using your binoculars for close range viewing, then you won?t need to get one with the higher magnification levels. However, if you want to use binoculars for purposes such as astronomy, then you should pay close consideration to the amount of magnification the binoculars are capable of. Deciding your budget as well as the number of magnification you need, are two important things that must be considered when buying binoculars.

In addition to these factors, you should also decide what size binoculars are best for your needs. If you go camping and hiking, or even biking, you will want to buy} binoculars that are effective, have more than adequate magnification, but are also lightweight and easy to transport. For those who use binoculars to view concerts, operas, or sporting events, choosing smaller and compact binoculars is important. You?ll want to make certain that the binoculars can fit easily in a bag or bagpack and aren?t a hindrance. Yet, if you are using binoculars for late night viewing outdoors, you shouldn?t be concerned with whether or not they can fit easily in a briefcase, handbag, or purse.

To choose the best binoculars, you?ll need to know how to read the numbers. Every pair of binoculars has a set of two numbers, represented with the x or times symbol. The first number refers to the power of magnification. You might see the binoculars listed as 7x, 8x, 9x, 10x, 11x, 12x, 13x, 14x, 15x, etc. This refers to the amount of magnification and would suggest that a pair of binoculars with a magnification of 7x would allow you to see images seven times closer or seven times larger than they are with the ***** eye.

The second number refers to the width of the lens. The larger the second number, the clearer the image will appear. By taking all these factors into consideration you can rest assured that you will select the best pair of binoculars for your viewing needs.

STEINER WEST GERMANY MILITARY MARINE BINOCULARS 7X50
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7x50 RC MARINE BINOCULARS W ILLUM COMPASS RF RETICLE
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Tasco Marine Series Rubber 7x50mm Binoculars W Case
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8×40 Binoculars

Sunday, September 27th, 2009 at 6:59 am

Comments (12)

Ricky Lim asked:

8x40 Binoculars

Ferranti International are renowned for making night vision goggles for the British Military. The most well known pair of Ferranti 8x40 binoculars available today are the Nite-Op NVGS. These particular goggles are a more advanced version of their ANVIS night vision goggles which the British military used to rely on.

In fact the design of the Nite-Op is basically the same as the ANVIS although they have a much craggier mounting system and they provide the user with a wider field of viewing. Plus the lenses on these night vision goggles are much wider in terms of the diameter which provides the wearer with a lot more comfort when being worn.

Actually, all types of night vision goggles are very similar in that they will all contain certain components in them. The main components that you will find in any type of night vision goggles are as follows:-

1. Image Intensifier

2. Objective Lens System

3. Eye Lens System

But although all night vision googles contain these 3 main components within their manufacture, how they are created and then engineered will result in a difference in how effective the goggles really are. Although they are most commonly used to help a person improve their viewing capabilities at night they are now being used in helping with search and retrieval tasks.

When looking for a good quality pair of night vision goggles whether it be a pair of Ferranti night vision goggles or a pair made by another manufacturer such as Bushnell it is important that you learn as much about them as possible.

Certainly once you start reading up on the various models available you will find a lot of sites offering a short description along with a list of the various features that each model has to offer the wearer. By learning more about the various features on each model you will be better able to understand their capabilities and what the quality of the images are like. Therefore it is best to take your time learning as much as you can about each model prior to make any final decisions on which pair it is you wish to purchase.