I used a Mamiya C330 in college. Not exactly what I'd call TTL because it's twin lens, but better than Rangefinder, I agree, for focus. Razor sharp lenses, but dark viewfinder. Reflex viewer available. Built like tank; when it finally dies, you can use it to drive 16-penny nails, so your investment is assured. None of these cameras is really compact, though. I assume you looked at Mamiya 7II; very compact, but yes, it's a rangefinder.