If you are used to Nikon the Canon may throw you -- the focus turns in the opposite way! (Freaked me out when I switched many years ago)

The FD Canons were pretty swell and ergonomic. I still have one left (an AE-1)

Contax RTS is loud

but..... small + quiet? RANGEFINDER

Contax G remains my fave tho a wee bit louder than an M (hey, it's motorized)