Many of the cameras (twin-lens reflex) have just the one lens. (Or if they have other lens it's an odd sort of attachment — probably not worth the hassle.) There is a lot to be said to "using your feet to zoom" with a fixed (prime) lens.
I did play with both a Mamiya and Bronica that had bayonet-style lens mounts. I cannot say from memory which lens I used with each. They were primes to be sure. I'm thinking maybe about 150mm or so? I believe that because of the film size, they're equivalent to about half their length in 35mm. So a 150mm lens is more like a 75mm lens for a 35mm camera (a decent portrait lens).
Generally though, not an "action" camera, so telephoto was mot so interesting. People and land/cityscapes look best, IMHO so a wide to medium-angle lenses were the best.
I did play with both a Mamiya and Bronica that had bayonet-style lens mounts. I cannot say from memory which lens I used with each. They were primes to be sure. I'm thinking maybe about 150mm or so? I believe that because of the film size, they're equivalent to about half their length in 35mm. So a 150mm lens is more like a 75mm lens for a 35mm camera (a decent portrait lens).
Generally though, not an "action" camera, so telephoto was mot so interesting. People and land/cityscapes look best, IMHO so a wide to medium-angle lenses were the best.