A 24mm lens is a type of wide-angle lens commonly used in photography and videography. It has a focal length of 24 millimeters, which allows for a broader field of view compared to standard lenses. This makes it ideal for capturing landscapes, architecture, and group photos, as it can fit more into the frame without needing to step back. In addition to its wide perspective, a 24mm lens often provides a pleasing depth of field, allowing for sharp focus on subjects while softly blurring the background. This characteristic enhances the visual appeal of images, making it a popular choice among both amateur and professional photographers.