HI I am planning to visit Rome Italy in September for 2 weeks. I have a Nikon D90 and the Nikon 35mm f1.8g afs lens. I also have the Nikon 50mm f1.8 and a Nikon 105mm f.18 (older model), I also have the Nikon 35mm - 70 mm zoom (older model). Can some one recommend a wide zoom? I am thinking about getting the Nikon 12mm 24mm f4. I am hesitant at bring something expensive into Rome, due to the theft risk. This will be my 5th trip to Europe and 2nd into Rome. I would like to bring only 2 lenses. Thanks for any help.