There is a stark difference in the way those are made, my Nikon F contains only mechanical parts and is made of brass. I could probably use it to cave in the heads of ten people and then take pictures of them.
The only manufacturer that still makes bodies the old way is Leica.
And those will stop bullets, and still work afterwards:
Or survive the Hindenburg disaster:
My Tumblr: http://image-data.tumblr.com,
only stuff I create.
I'm a snobby cocky connoisseur of the finer things of life.