Binoculars Buying Guide – FAQ

When buying binoculars, you have two options. You can opt for cheap binoculars that may be good enough for occasional observation of distant stuff. Or you can buy high-quality binoculars that are far superior in terms of performance and durability. Although very good binoculars are expensive, they are a one-time purchase that lasts a lifetime. … Read more

Binoculars – What Are The Most Important Features

As a binoculars expert, whether you are a hunter, sailor, or bird watcher or have used binoculars for many years,  you probably know exactly how to tell a good pair of binoculars from a bad one. But it is much harder for beginners to find their way around binoculars and to understand the various features, … Read more

Binoculars Magnification Explained

what is binoculars magnification

The magnification of binoculars is the rating that is usually considered first and foremost. The magnification is the factor by which an object appears larger and closer. But what is the best magnification in binoculars? Although theoretically any magnification can be achieved, there are limits. Binoculars Magnification Explained The magnification of binoculars and their optical … Read more

What Is The Exit Pupil In An Optical Instrument

exit pupil in binoculars

The exit pupil of binoculars or telescopes is the diameter of the image that is projected in front of the eyepiece. Where the exit pupil appears, this distance is called eye relief. If the exit pupil lies exactly on the pupil of the observer’s eye, then the projected image can be perceived in its entirety. … Read more

How To Focus Binoculars

how to focus binoculars

So that you can see correctly and use the binoculars optimally, it is necessary to adjust the instrument to your eyes and focus individually. If the image of the binoculars is out of focus, the brain tries to compensate for the blurred vision and the misaligned images. This can lead to dizziness, headache, eye fatigue, … Read more

How Do Binoculars Work – Binoculars Parts And Their Function

how do binoculars work

Binoculars are great tools to observe distant objects and as such are used in search and rescue, hunting, marine, bird watching, astronomy… the uses are unlimited. But how do binoculars work, what are the essential parts of binoculars and how do they work together? How Do Binoculars work Binoculars magnify an observed image with the … Read more

Optical Glass For Binoculars – What Is ED Glass?

Optical Glass For Binoculars - What Is ED Glass

In binoculars and optical instruments, the use of the right glass is crucial to the quality of the produced images. High-quality and specially processed glass prevents light scattering, unwanted reflections and color fringing caused by different refraction of light of different wavelengths. Which glass do you need for binoculars? Glass consists of a great percentage … Read more

Porro Prism vs Roof Prism – Whats Their Function In Binoculars?

Porro Prism

There are different types of prisms used in binoculars. One design uses Porro Prisms, the other Roof Prisms. Each type has its own advantages and disadvantages, features and characteristics. And what are the prisms for anyway? But what is the function of prisms in binoculars? Prism binoculars work according to the Kepler telescope principle. Telescopes … Read more

What Is The Binoculars Lens Coating For?

What Are Binoculars Lens Coatings For?

Every time when a beam of light travels from one medium into another the beam of light is bent (refracted). An observation you have probably wondered about as a child when putting a straw in a glass of water.  When light is traveling through an optical instrument the optical glass of binoculars reflects, refract and … Read more