nikon 50 to 300mm lens

Ai-S Zoom-Nikkor 50-300mm f/4.5s ED This great Nikkor zoom lense was subsequently upgraded with an Ai-S type lens coupling system in 1982 to enable newer series of Nikon SLRs to utilize the lense in programmed AE and Shutter Priority AE exposure control modes. Along with this update, Nikon optical engineers managed to "screeze" its weight down ... exca pc 50