dick ranez wrote:
Take your phone. Having wandered the streets of Paris, London and Rome with nothing more than a 50mm, it's hard to imagine needing more than your kit lens you already have. Since it's not a photo specific tour, taking a extra lens is extra weight, time consuming and not necessary. Zoom with your feet if you must, but don't forget to spend the money you don't spend on photo equipment to sample the bakeries, bars and wonderful sidewalk restaurants in Paris.
Take a Paris walking tour in the morning then relax at the cafes, restaurants, etc. Never do more than one "serious" tour/visit per day.