Are film-based SLR's as durable as rangefinder cameras? I walked into a second-hand shop today and many of their Nikon SLR's have problems with its shutter or light meter of some sorts. If I were to invest in an FM3A today, would it be durable enough to last at least a decade without requiring repairs? Yet, if it starts to break down, will Nikon be able to fix it? Unfortunately, it's no longer in production. I would have considered a fully mechanical camera if that's more durable, but I have much easier time with aperture-priority. Worse yet, if I were to get something even older like Nikon EM, will I be able to fix it? I take about 5,000 to 10,000 photos per year. Is that a lot for an old SLR? My main camera is the current model Zeiss Ikon. But, sometime I fancy getting a Nikon manual focus camera so I can use Zeiss's ZF lenses.