Posts belonging to Category 'Technical'

Does Age Affect Image Brightness in Binoculars?

This week I received an interesting question from Andre in the Netherlands who wants to know if your age affects how bright an image you are able to see when looking through binoculars with different configurations: Question Hi, Andre from holland. In your tests, I see nothing about if you are a little older then […]

How Thermal Imaging Works

Guide to how thermal binoculars, monoculars, and other imaging devices work with links to examples, reviews & recommendations. I think the best way to think about thermal imaging is that instead of seeing with light energy as we do normally, a thermal imaging device like a monocular or binocular enables you to see with the […]

Top 3 Mistakes Binocular Beginners Make & How to Avoid Them

In this article, I’m going to show you the Top 3 Mistakes I see Binocular Beginners make and how you can Avoid them. I guess there may be some people who have held their binoculars upside down (like in the title image above) or around the wrong way and looked through the objective lenses instead […]

How Binoculars Work

Whilst you don’t need to become an expert, I always find that I am able to get the most out of something if I have at least a basic understanding of how it functions. So how do binoculars work? In this comprehensive guide, I will go over the science behind how the optics in a […]

How Different Configurations Affect a Binocular

10x42, 8x42, 8x32, 10x26… What is right for me? I often get asked questions in relation to the different configurations of a binocular and which one is the best for a particular use or uses. So I thought I would put this document together that goes through the major binocular configurations and explains each of […]

Ocular Lens Size in Binoculars

  The size of the ocular lenses on binoculars is something that is almost never considered when buyers decide as to which is best. However apart from measuring them yourselves there is actually very little way of knowing what size oculars a particular model has. This is because very few brands actually publish this information […]

Apochromatic (APO) Lenses in Binoculars

Recently I have seen as well as reviewed and tested more and more top end binoculars that use Apochromatic lenses (APO) and whilst some manufacturers mention that their products have an APO optical system, very few (if any) go on to explain exactly what it is and what it does. So with this in mind […]

What do binocular numbers mean?

AboveThe BBR Video above answers the question: What do the numbers mean on a binocular and is part of my Binoculars 101 series on What To Look For When Buying Binoculars.  BelowThe article below was written by Derek Sergeant and takes the perspective of a newcomer learning about the importance and meaning of the numbers […]

How To Use Binoculars With Glasses: Eye-relief & Eye-cups Explained

A question I often get asked is: How to use binoculars with glasses?, or If I wear eyeglasses, do I need to buy special binoculars? The good news is that not only can you wear glasses when you use binoculars but you can get a view every bit as good as those who don’t. However, […]

Binoculars 101: Magnification, Stability, Field of View & Brightness

How a Binoculars Magnification affects your Viewing Experience In this article I’m going to discuss magnification and in particular how a binoculars power (magnification) impacts your experience whilst using it. Please note: For the purpose of this document, I’ll be using the terms power and magnification interchangeably. Size of the Binocular When considering a binoculars […]