Just how old IS the Nikon D800? I checked, and it was launched in 2012. At the time of writing in 2023, that makes it 11 years old. In terms of camera development, this should put it right back with the dinosaurs.
I was working on a Nikon magazine when the Nikon D800 first came out, and its full frame 36MP sensor was the stuff of dreams. I wanted one very badly, but there was no way I could afford one.
