Up to you if you think you need the extra "zoom". Also depends on where in the USA you are going to, what you plan on shooting, etc etc. I would use very different lenses for a trip to new York than to Colorado for example.Hi all
Need you advice. I own a Sigma 17-50mm f2.8. I am going for a 3-week holiday in the States. i thought of buying another lens for the trip. ie Tamron AF 18-270mm f/3.5. is it advisable to do so ???