The E-mount is a type of lens mount developed by Sony for their mirrorless cameras. Introduced in 2010, it allows for a compact design, enabling smaller and lighter camera bodies while maintaining high-quality imaging capabilities. The E-mount supports both full-frame and APS-C sensor formats, making it versatile for various photography needs. E-mount lenses are designed to be easily interchangeable, providing photographers with a wide range of options. This system has grown to include numerous lenses from Sony and third-party manufacturers, enhancing the creative possibilities for users. The E-mount's popularity has contributed to the growth of the mirrorless camera market.