I bought a New Nikon FA back in the 70's and stored it in a draw for the last 35 years since I stopped using it. It worked fine when I stopped using it and removed the batteries before storing it. I took it out today to sell it and bought new batteries and the shutter won't cock. The shutter button does work and is not stuck. When I look through the lens it is very dark. I can see through it but just dark. Any idea's
Thanks
alcap