Nikon
DR-3
Right Angle Viewing Attachment
DR-3 Right Angle Viewfinder Attachment (Round, screw-in mount). Provides an upright and un-reversed image for right-angle viewing.
Compatible with all Nikon SLR cameras with a 19mm round nonhigh eye-point viewing eyepiece thread including: F, F2, F3, F3AF, FA, FE, FE2, FM, FM2, FM3A, and Nikkormat series.
Requires DK-7 (#2394) for all Nikon SLR cameras with a 22mm round high eye-point viewing eyepiece thread including: D1, D1H, D1X, D2H, D2X, F3HP, F4, F5, F6, F100, N90, N90s, N8008 and N8008s. May cause vignetting at corners.