The Tamron 18-270 Di II PZD Sony is simply a good-telephoto zoom workhorse for all occasions without any ifs and buts. As my Sony 18-250 had in revision because of dust in the lens and in the studio I had appointments, I have implemented further ado the decision taken long desire for the Tamron in an order and am thrilled. The build quality is beyond doubt, the warranty expires 5 years, what more could you want in the focal length spread. For you!