*NIKON DG-1 EYEPIECE MAGNIFIER | 19mm THREAD | for NIKON F-SERIES 35mm FILM SLR*
NIKON DG-1 EYEPIECE MAGNIFIER . Eyepiece magnifier made by Nikon. It fits the Nikon F, F2, FE, FM series, FA, and Nikkormats. It provides 2x magnification and has dioptric correction from -5 to +1.