What is the difference between magnification and objective lens size?

Magnification and objective lens size are two separate specifications used to describe binoculars. Magnification refers to the amount by which an object appears larger when viewed through the binoculars. It is indicated by a numerical value, such as 8x or 10x, where "x" represents multiplication. A binocular with 8x magnification makes the object appear eight times larger than it would be seen with the unaided eye. On the other hand, objective lens size is the diameter of the front lenses in millimeters. It is usually mentioned along with the magnification, for example, 8x42 or 10x50. The objective lens size influences the amount of light that can enter the binoculars. A larger objective lens allows more light to be gathered, resulting in brighter and clearer images, particularly in low light conditions. However, it can also make the binoculars heavier and bulkier. Hence, both magnification and objective lens size play a crucial role in determining the viewing experience, and buyers should consider their specific needs before making a purchase.