I'm 52. My Nikon F is 45, Nikkormat FtN is 42 (that's my 'new' camera ), my Deardorff V8 was made in 1950, Linhof STIV 1959; I have and use lenses made from 1904/5 to 1971. I do use mostly fresh chemicals and color films, but I'm currently using Tri-X in 8x10 that has been stored frozen since 1989.