Be it bird watching, stargazing, hunting, travel, safari, or for sport and entertainment, we have all seen and used binoculars at some point of time in our lives. With the advancements in the field of technology, binoculars are nowadays more modernized with improved quality. However, binoculars still remain mysterious to many prospective buyers in spite of their popularity, the way they work, how they are better than the others, etc. Scroll down to know more about some of the features of binoculars before choosing the right one for you.
1. Maven B2 9x45mm Binoculars
2. Athlon Optics, Midas, Binoculars, 8x42mm ED Roof
3. Upland Optics Venator 10x42mm Binoculars
4. Celestron 71380 Granite Series 9×33 Roof Prism Binoculars
5. Celestron SkyMaster 25x100mm ASTRO Binoculars
6. Hawke Endurance ED 8×42 Binoculars
7. Vanguard Spirit XF 10x42mm Binoculars
8. Nikon 8245 ACULON A211 8x42mm Binoculars
Magnification and Objective Lens Diameter: These two specifications are one of the primary features of a binocular which is usually included in the model information. For example, if a model name reads 10×42 mm, it is magnification x objective lens diameter. A binocular having a magnification of 10x means it gives you an ability to view a distant object 10 times larger. Therefore, an object 200 yards away will appear as only 20 yards away. On the other hand, 42mm stands for the objective lens diameter. Binoculars having a larger lens will fetch a brighter image as compared to the smaller lenses.
Field of View: To put in simple words, the field of view is the total area you can see when you are looking through your binoculars. While a higher magnification means a smaller field of view, a larger lens means a larger field of view. We can say that magnification and the diameter of the objective lens certainly affect the field of view.
Eye Relief: Eye relief is the optimal distance from the eyepiece to your eye. It is closely associated with the field of view. This might be a feature to watch out for if you wear glasses. For people with glasses, the lenses will position the eyepiece past the distance of eye relief thereby affecting the image quality. Also, it would be hard to achieve a sharp focus. However, manufacturers are now offering dioptric adjustments on one of the eyepieces so that one can adjust the focusing system accordingly. Usually, models with longer eye relief have a smaller field of view.
Exit Pupil Diameter: Exit pupil diameter specifies the brightness your Binoculars can provide. Measured in millimeters, it is the size of the light beam that hits your eyes through the lenses. It is determined by dividing the objective lens diameter by the magnification. The higher the number, the brighter the images produced.
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