The Leica L-mount is a standardized lens mount system developed by Leica Camera AG, designed for use with mirrorless cameras. It allows for interchangeable lenses across different camera brands, including Leica, Panasonic, and Sigma, promoting versatility and compatibility in photography. Introduced in 2018, the L-mount features a wide diameter and short flange distance, enabling the use of a variety of lens designs. This system supports both full-frame and APS-C sensors, making it suitable for a range of photographic applications, from professional to amateur use.