When buying sports binoculars we are kind of setback by the technical words that the sales agents use while explaining the benefits of the item in question. There are few important thing that you would need to keep in mind while purchasing a good binocular. The three most important aspects that one needs to keep in mind would be the magnification power of lenses, the aperture of the binocular and the field of view.
The magnification power of the binocular can be determined while looking at its description, which might show number that would look like 8X40 10X50, etc. This means that the images viewed through these sports binocular would be eight times bigger or ten times bigger the normal size. The higher the number in the description, the better magnification you would get.
The aperture of the lenses determine the amount of light that enters the binocular through the front lenses. The second number in the description gives you the aperture of the binocular. The bigger the front lenses, the more light. More light entering the lenses means better image quality, richness and colorful.
The field of view determines the area in meters or feet that can be viewed through these sports binoculars. Basically, binoculars with higher magnification would mean smaller field of view. One needs to be careful before choosing sports binoculars as these are some things that you would not be purchasing regularly.