now i got a sony 828 with 7xzoom (carl zeiss t*), but it is quite bulky, not as handy as s75.
i am still keeping my film one, a canon eos 33 with several lens, 28-90, 35-70, 70-210, 100-300 plus 3 flashguns.
a zoom lens combines different functions together, ie wide angles or telephotos, so one does not have to change lens all the time, but the quality is greatly compromised as professtional hesitate to use.