Category Archives for "Blog"

Binoculars – Understanding The Terms

Exit PupilExit pupil is the result of dividing the objective lens diameter by the magnification. Dividing thus will give you a number approximately between 4 and 8. The number which is measured in diameter, represents the beam of light that leaves the eyepiece when you hold a binocular with the objective pointed towards a light […]

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Binoculars – Overview

The Background Binoculars are optical tools that consist of two barrel chambers with a pair of prisms inside, having an objective lens and an eyepiece. The prisms are for the reflection and lengthening of the light, while the objective lenses, are for magnifying and enhancing images due to stereoscopic vision. History Just like every other tool used by […]

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Binoculars – Manufacturing Process Review

There are brass housing covers on every binoculars model, and they are relatively heavy and expensive to produce. During the world war 1 subsequent hard rubber or leather covers were replaced in Germany by a cover of black lacquered cardboard. The heavier brass housing covers was replaced by the galvanized steel. In the 1930s, to […]

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Binoculars Guide – Test Before Buying

After buying your binoculars at a store, you should check their performance, or if you buy it online, as soon as they arrive, you should also check their performance as well. Below are few tests that will help you choose quality binoculars.Observe the objective lens carefully. if there are signs of scratches or dirt, you […]

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