The Nikon F4 is a professional 35mm film SLR camera that represents the technological transition between the manual focus era and the advanced autofocus era. Introduced as the successor to the F3 series, this machine integrates a Matrix multi-zone exposure system, center-weighted metering, and spot reading, managed by an electronically controlled shutter capable of shutter speeds up to 1/8000 of a second. The structure is characterized by a robust die-cast aluminum alloy chassis covered in shock-proof rubber, designed to withstand harsh environmental conditions. A distinctive feature of the Nikon F4 is the user interface based on dedicated analog dials for shutter speeds, exposure compensation, and shooting modes, maintaining a tactile approach despite the complex electronics. Compatibility with the F-mount is among the widest in Nikon’s history, allowing the use of AI, AI-S lenses, and early AF lenses, ensuring exposure metering with almost every lens produced since 1959. The DP-20 interchangeable viewfinder offers one hundred percent coverage of the framed field and includes integrated diopter correction.