A Digital Single-Lens Reflex Camera, often abbreviated as DSLR, is a type of camera that uses a mirror mechanism to reflect light from the lens to an optical viewfinder. This allows photographers to see exactly what the lens sees, making it easier to compose shots. DSLRs typically offer interchangeable lenses, giving users the flexibility to choose the best lens for different photography styles. DSLRs are known for their high image quality, fast autofocus, and manual controls, making them popular among both amateur and professional photographers. They often feature larger sensors compared to compact cameras, which helps capture more detail and perform better in low-light conditions.