IIIf is great camera and is the top of the screw mount leica, but I feel it's overpriced these days especially when it's clean. And if you need other lens than 50mm you need finder which is expensive as well. That was the reason why I would prefer M2. IIIc is slightly different from IIIf, but the price is much less. That said, a well CLAed IIIf shutter is a pleasure, though. And SBOOI finder will make you see the world brighter than it really is.