The Sony 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 compared to traditional DSLR systems. The E-mount supports a wide range of lenses, including those designed specifically for Sony's full-frame and APS-C sensor cameras. E-mount lenses are known for their versatility and compatibility with various accessories. The mount features electronic contacts that facilitate communication between the camera and lens, allowing for autofocus and image stabilization. This system has contributed to the popularity of Sony's mirrorless cameras among both amateur and professional photographers.