The DE-1 is a basic standard eye level finder. The DE-1 is the bare bone eye level finder fitted onto a Nikon F2 camera body, is similar to any other SLR. This basic configuration provides the photographer with an erect unreversed image, makes viewing and focusing natural and simple. But while the pentaprism viewfinder has fully proven itself for day-to-day shooting situations, it is not always the ideal solution to all viewing and focusing requirements some situation demands. The DE-1 finder is interchangeable with four other non-metered special application finders - the Action Finder DA-1, the Waist-Level Finder DW-1 and the 6X Focusing Finder DW-2. The basic body can also use with all the various metered prisms (DP-1, DP-2, DP-3, DP-11, DP-12) that were introduced gradually along its product cycle stretched from 1971 to 1977.