The Nikon Nikkor 50mm f/1.8 Series E AIS is a manual focus normal lens for Nikon SLR (Single Lens Reflex) 35mm film cameras. It's useable on basically all Nikon 35mm film SLRs bodies and many digital Nikon SLR bodies*. Series E lenses use the very same optical glass and feature the same rugged Nikon bayonet mount as regular Nikkor lenses; the only difference is that they have been pared down in size, weight and price as a starter lens.