Rangefinder cameras!
Early on in my film photography experience I switched to using a Leica rangefinder and once I did, I never had any desire to use anything else. The rangefinder distills everything a camera needs to do down to its basic elements: aperture, shutter speed, focus and framing. Particularly on meterless models, there is absolutely no automation. Everything is manual. No batteries to worry about. A clean frameline which floats in space, allowing you to see your surroundings and compose accordingly. True, you can spend an absolutely obscene amount of money on one of today's digital Leicas, which will rapidly become obsolete, or you can pay a small fraction of that price for a used film model that will give you many, many years of service and hold - or even increase - its value over time.
