I know you'll all hate this question, and it's the first question any novice asks, and there is no right answer but I'll ask it anyway! I would like advise on which lens to get for all round performance. I can't afford a bag of lenses, but I'd like a single, good quality lens to play with while I get to grips with more serious photography. I have read posts on lots of websites about the same question that result in hundreds of replies discussing focal lengths and aperture sizes etc....all completely bewildering! So please give me a name of a lens, if you were in my shoes what would you buy as a lens for all round use? I've got 2 months of fieldwork on South Georgia, near Antarctica, so they'll be snow, bad weather, lots of UV, lots of wildlife and some spectatcular scenery! Thanks to all for your help.