Nikon F4 is a single lens reflex camera or better known as Nikon F4 SLR, is the first camera from the company to offer auto-focus and able to use manual focus lens from 1959 to today lens.
It was launch back in 1988, which means it uses 35mm film. From what I read, the only digital thing about it is the LCD viewfinder display, autofocus, programmed auto-exposure, and matrix meter.
If you are wondering who is the guy in featured picture above, his name is emikv2000 and F4 model next to him is his finish build model.
This also proves that this gadget paper craft model look almost as the real thing in his hand. Scale at 1:1 , model kits requires 4 sheets of paper to build.