An interchangeable lens system is a camera design that allows photographers to use lenses of different focal lengths on the same camera body. This flexibility enables the use of wide-angle, standard, telephoto, and specialty lenses without needing multiple cameras.
Interchangeable lens systems are a key feature of SLR, mirrorless, and medium-format cameras, giving photographers the freedom to adapt to different shooting scenarios, from landscapes and portraits to macro and sports photography. Understanding this system is essential for selecting the right lens for each creative or technical requirement, enhancing both versatility and image quality.