The term "10x50" typically refers to a type of binoculars that have a magnification of 10 times and an objective lens diameter of 50 millimeters. This means that objects viewed through these binoculars appear ten times closer than they do with the naked eye, and the larger objective lens allows for better light gathering, resulting in brighter images, especially in low-light conditions. These binoculars are popular for various outdoor activities, such as birdwatching, hiking, and sports events. The combination of magnification and lens size makes them versatile for both casual users and enthusiasts, providing a good balance between portability and performance.