A mirrorless camera is a type of digital camera that does not use a mirror mechanism, unlike traditional DSLR cameras. This design allows for a more compact and lightweight body, making it easier to carry and handle. Mirrorless cameras use electronic viewfinders or LCD screens to display the image, providing real-time previews of the shot. These cameras typically offer interchangeable lenses, similar to DSLRs, giving photographers flexibility in their creative choices. Many mirrorless models also feature advanced autofocus systems and high-quality image sensors, making them popular among both amateur and professional photographers.