Binocular Specs Explained: Magnification, 42mm Lenses & Exit Pupil
What do 8×42 or 10×50 actually mean? See why 8-10x magnification and a 4-7mm exit pupil matter more than lens size for low-light viewing. Read the breakdown.

What do 8×42 or 10×50 actually mean? See why 8-10x magnification and a 4-7mm exit pupil matter more than lens size for low-light viewing. Read the breakdown.