>>106355404
Nice one. I have an old Contax III somewhere around the house with an in-body meter, no clue if it's accurate.
This is the CONTAX AX, the only autofocusing manual lens camera. It's not actually german, it's Yashica with exclusive Contax Zeiss lenses (which are still german). Yashica wanted to make an autofocusing camera but their contract with Contax was only for manual lenses and even though the cameras are great, Contax wouldn't budge.
So Yashica designed a camera within a camera. The entire miror, viewfinder, and film plane moves inside this camera. It has a little sensor on the front to rangefind the object in front of it and then auto-focuses to it. It's a little finicky, it will bounce back and forth around the focus point until it narrows it down, but it works.