Following up from the incredible success of the original Nikon F, the venerable Nikon F2 was introduced in 1971, and throughout it's production camera technology rapidly advanced. By having interchangeable metering prisms, Nikon was able to constantly iterate and improve the meter of the Nikon F2, and the DP-3 of 1976 is a perfect example. A more compact design compared to previous metered prism heads, the DP-3 also introduced a built-in illuminator for the shutter speed and aperture read-out windows. The model was short-lived, however, as 1977 ushered in the AI metering standard, and the model was discontinued.