As above, i am wondering which is more versatile? I am going to Taiwan during my eoy holidays and i am wondering is there any different between them other than the range? i am interested in landscape, closeup shots and portrait shots. Budget for the camera and the lens around 1.5k, haven't buy yet though. i looked up at tamron website but cant find much different about them. >< anyone can help? price between them is roughly the same right? Thanks.