Originally posted by CWyatt You might disagree with Henri Cartier-Bresson, Garry Winogrand and many other top street/classic doco photographers.... it depends on how you shoot. One might be just fine. For others, zooms or many lenses are fine too.
Both HCB and GW used more than one lens. Each may have preferred certain focal lengths (50mm for HCB, 28mm for GW) but they used others too, according to my brief research. Some legendary toggers stick mostly to one lens, and many others don't, so we can draw no firm conclusions here other than, "If it works for you, fine!"
A couple years ago I bought the kit of a late urban shooter, a staff togger on a newspaper in a medium-size Midwestern USA city up through the early 1990s. Nothing fancy: workhorse M42 body with 28/2.8 and 55/1.7 and 135/2.8 lenses; a Yashica GSN Electro 35 (with 45/1.8 lens) probably for color shots for the Sunday magazine; a couple flashes, sets of filters, etc. A basic working kit for urban reporting. FOV-translated to APS-C, that's like a K5 with 21-35-90mm lenses, with an X100 for backup.
Other PJs might have a similar but shorter kit, especially if they're shooting crime scenes in tight quarters: 24-35-55-85mm, FOV-translated as 16-24-35-58mm. I've already mentioned my low-light street kit: 24-50-85-135mm. For daylight, I'd replace the 24mm with 21+28mm, and supplement the midrange with an F35-70. These, and some slower lenses, have each proved their value to me in specific situations. You'll have to pry these from my cold, dead fingers. No rush, eh?