hello everyone! im new round here and im kinda stumped as to what kind of zoom lense to buy. My camera is a Sony a350 (and i already have the 18-70 lens provided with the camera). Im looking for a lens up to 200mm (mostly because the reviews i have read on forums etc suggest that most lens that go up to 300mm get very soft at the max length) my budget is around 250 pounds for that matter, simply bacause i am going to purchase a tamron 90mm di macro lense aswell, and that is going to set me back another 300 pounds. What lense do you guys recommend?