Magnification:
Every binocular will have indicators like "10 x 50" and the first number indicates the magnification, in this case, 10X magnification. Magnification is otherwise the power of zoom, i.e. the image viewed through binoculars can be zoomed 10 times the initial stage, before adjusting the lenses. With high magnification, clearer pictures of distance sceneries can be viewed.
Lens Size:
The second number of the above indicators, i.e. "10 x 50", mentions the size of the lens, in this case, 50mm. When the lens size is big, more light can pass through and hence clearer, brighter pictures can be viewed, than in a binocular with smaller lens size. These two are the most commonly discussed features in any Binocular buying guide.
Field of view (FoV):
Field of View is the area covered while looking into the binocular lenses. This is high in binoculars with bigger lenses. However, when the magnification is increased, the FoV gets decreased considerably and the image gets distorted when the binocular is shaken even lightly. Recently digitally stabilized binoculars are available in the market from leading manufacturers to solve this conflict. Every professional Binocular buying guide will have a detailed description of this factor.
Waterproof and Fog-proof:
Waterproofing is done by using O-rings and this helps in preventing water, as well as other debris, from entering the lens tube. This feature is very useful for every purpose.
People can see fog-proof binoculars for sale recently from many brands. This is done by purging the binoculars with Nitrogen gas or Argon gas and by preventing the inner surface from gaining moisture.
Anti-Reflective Coating:
This is also a recent development in the binoculars manufacturing industry. There are three types of anti-reflective coated binoculars for sale: coated, Multicoated and fully coated. The brightness and clearness of the picture increase progressively in these three types respectively.
Brand, Price, and Size:
Brands and Prices are variable factors and can change according to the budget and brand reliability, whereas the size of the product can also vary from one another.
Detailed insight of these features can be seen in professional Binocular buying guides that are written exclusively for each purpose individually.
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