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 […]


Exit Pupil – The Complete Guide

Optics & Binoculars 101: Exit Pupil In the world of optics, the exit pupil is a virtual aperture in an optical system. On a pair of binoculars, it can be seen as the bright circle in the center of each eyepiece when you hold them about 30cm away from your eyes and with the objective […]


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 […]


Are 32mm Binoculars all you Need?

On the Birdforum, someone recently asked a very good question pertaining to 32mm binoculars and rather than just a brief answer, I thought that it was well worth taking a far more detailed look into the following question which I have paraphrased below: Question: Are 32mm Binoculars all you need? Whilst out birding at first […]