Crucial factors to consider when searching for the best binoculars, type of binoculars and binoculars reviews  – binocularsguide.net . If I had really wanted to, I could probably come up with 20 different things to consider before buying a set of binoculars. That might bore you to death though, so I narrowed it down to the following 7 crucial. I have sorted these in order of importance, with Magnification and Objective Lens Size being the number 1 and 2 factors to consider when you struggling to choose a binocular.