How to Choose Binoculars

Separating Real Features from Marketing Hype With such a huge amount and variety of brands, sizes, and prices it can get more than a little overwhelming when trying to make a shortlist, nevermind actually choose your binoculars and this is made even the more difficult with all the marketing jargon and the fact that each […]


Phase Correction in Binoculars

Phase Correction on Binoculars After the light travels through the objective lenses on a roof prism binocular, it then reflects off the surfaces of the prism. These multiple internal reflections on the prism and because of a phenomenon known as Brewster’s or the polarization angle, cause the light to become partly polarized and the light […]


Ruby Coated Binoculars

A common question I get asked is about binoculars with ruby coatings on the lenses and if they are a good or bad thing: The first thing to mention about “ruby” coatings on binoculars is that the coating has nothing to do with the mineral ruby. As far as I know, ruby coated lenses were […]