What do binocular numbers mean? may seem like a simple question. But the truth is that it can be as simple or as complicated as you want. If you’re just talking about the numbers in “10×42” or “8×32,” ...

• Binoculars are classified with two numbers: 8×32, 10×40, etc. The first refers to the magnification—how many times closer an object appears. For most of us, seven or eight power is perfect; serious ...

Human vision is pretty remarkable relative to the rest of the animal kingdom. We can pick out large objects miles away, but even “eagle-eyed” people with perfect vision struggle to make out details ...