Nikon On-Camera Flashes & Lights | Nikon Sb-E Flash For Nikon [Gn56]

1979-87, Gn 56 (17/M), Standard Iso Foot Mount, Designed For Used With Fg-20 And Em, Can Be Used On Any Camera With Iso Hot Shoe Mount. Self Regulated Auto Mode Only. When Using Ais, Ai Or E Series Lenses On The Fg-20 Or Em Cameras, A Choice Of Three Aperture Settings Is Offered; Only One Aperture Choice With Other Cameras.