How To Tell A Good Pair Of Binoculars

good pair of binoculars

As a skilled outdoors expert, whether you are a hunter, sailor, or bird watcher or have used binoculars professionally 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 … Read more

Binoculars Magnification Explained

what is binoculars magnification

The magnification of binoculars is the factor by which an object appears larger and closer. Magnification is an important parameter when rating which binoculars are best for which kind of use. But what is the best magnification in binoculars? A higher magnification provides more image detail, but more may not always be better.  Although almost … Read more

What Is Eye Relief In Binoculars?

what is eye relief in binoculars

The eye relief in binoculars is the distance between the eyepiece lens and your eye. More precisely, it is the distance at which the projected virtual image “hovers” in the front of the eyepiece. When the observer’s eye is exactly at this point then the projected virtual image will be perceived optimally and completely in … Read more

What Is The Exit Pupil In An Optical Instrument?

exit pupil in binoculars

The exit pupil of binoculars is the diameter of the light beam that exits from the eyepiece of the binoculars. You can see the exit pupil if you aim your binoculars or telescope at a bright background. Looking at the eyepiece from a distance, you will see the exit pupil as a round disc of … Read more

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 work using a set of lenses that are cleverly arranged to magnify distant objects and make them appear closer and larger. Prisms reverse the inverted images of the lenses and reduce the length of the binoculars by redirecting the light path. How Do Binoculars work Binoculars work on the principles of optical laws, precisely by … 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 best optical glass types is crucial to the quality of the images displayed. 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? Normal glass as everyone … Read more

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

Porro Prism

Prisms in binoculars flip and reverse the virtual image so that you see a true image. 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 … Read more

What Is The Binoculars Lens Coating For?

What Are Binoculars Lens Coatings For?

Every time 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 absorbs … Read more

How Are Binoculars Rated, Binoculars Buying Guide

how are binoculars rated

If you are new to binoculars and how binoculars work, you need to learn what the numbers stand for, what the different features are, and how all this sets the different binoculars apart. Here are the basics about binoculars explained and how are binoculars rated. When you need to choose a particular pair of binoculars, … Read more