Canon set a new reference standard with the Canon EOS R5, overheating drama included. Here…
Matthew Farrell, Michelle Pang, Michael Tom, engineering students of Engineering 128 class from University of California, produced an exploded view (and re-assembling) of a Canon EOS 10D with a 24-85mm F/3.5-4.5 lens to show how complex a digital DSLR is. The video was made 4 years ago. It is not entirely clear if they used blue-prints from Canon but I guess they did the whole modelling on their own. Kudos!
The EOS 10D was introduced February 2003. It had 6.3 MP sensor, a 7-point AF system, magnesium alloy body, ISO 100-1600 (3200), 3fps.