Kodak DCS serial no. register How many Kodak DCS cameras were made & is anybody interested enough in this piece of photographic history to find out?

Minolta RD-175/Agfa ActionCam A nasty, plasticy DSLR for $8,500? There can't be many of those...

Sony Mavica The original, professinal Still Video Mavica [MAgnetic VIdeo CAmera]

Canon Still Video Canon's answer to the Mavica was the RC S[till] V[ideo] series

Canon EF 50mm f/1.0 With the biggest aperture of any 35mm SLR lens ever, they were always going to be expensive.

Canon 50mm f/0.95 'Dream' lens serial no. register It seems to be common knowledge how many cameras were made, but how many of these amazing, large lenses were made? Hopefully this project will give an idea