The original Nikon F2 Photomic, packaged with the Nikon DP-1 head, was manufactured from 1971 to 1977. The DP-1 had a center-the-needle exposure control system using a galvanometer needle pointer moving between horizontally arranged +/– over/underexposure markers at the bottom of the viewfinder to indicate the readings of the built-in 60/40 percent centerweighted, cadmium sulfide (CdS) light meter versus the photographer's actual camera selections. Flanking the needle array on the left and right were a readout of the camera set f-stop and shutter speed, respectively. The needle array was duplicated on the top of the DP-1 head to allow exposure control without looking through the viewfinder. A Nikon F2 Photomic with Nikkor-S 50 mm f/1.4 lens had a US list price of $660 in 1972. Note that SLRs usually sold for 30 to 40 percent below list price.