Joanie's
binocular tip of the day. Did you know that most people have one eye that is stronger than the other? It's actually uncommon to have two eyes that are exactly equal. That's way all
binoculars, with the exception of inexpensive "no focus" models, have a diopter (strength) adjustment. When making the initial diopter adjustment for your eyes, don't make the mistake of closing one eye and then the other. You'll get the most comfortable setting, with the least amount of eye fatigue, if you keep
both eyes open when you make a diopter adjustment on a
binocular. After all, both eyes open is the way you will be using a binocular. If you find it difficult to use both eyes, simply hold your hand over the other side, but do not close your eyes.