the term "fotocamera" or "macchina fotografica" are the same thing. The difference beetween them is in their use: "fotocamera" is more used in the field of professional technical application.
the term "camera", in field of photografy, comes from the first camera, that was composed of a closed box (called "camera obscura"). The light, passing through the shutter, was going to impress a picture film.
So, camera is your bedroom.
The correct sentense is "la fotocamera è in camera da letto" oppure "la macchina fotografica è in camera".
excuse me for some mistakes, but I hope to explane your doubt.