The document discusses different types of still cameras. It identifies cameras as compact consumer cameras, compact prosumer cameras, prosumer DSLRs, and professional DSLRs. Compact consumer cameras are small, lightweight, inexpensive, and have fixed lenses but lack manual controls and produce lower quality images. Compact prosumer cameras have some manual controls and interchangeable lenses but also have limitations in quality and controls. Prosumer DSLRs have more professional features like interchangeable lenses and full manual controls but have limitations in image quality and options. Professional DSLRs provide fully professional features, interchangeable lens systems, and high quality images but at greater cost, size and weight. The document provides examples and features of each type to