hi here I just purchased a d3200 and I'm taking my first steps on this type of cameras. my d3200 comes with a AF-S DX 18-55 mm 1:3.5-5.6 G VR lens and I would like to purchase a lens that will allow me to capture nice landscapes during travels, but I have done a little bit of research trying to get a better understanding of which lens I would benefit best and in reality I got more confused than I was in the beginning because they started to mention about the AF vs AF-S depending on the fact that whether my camera has internal motor or not and so on... Can somebody help me with this issue? I would like to be clear about this so I can make the purchase.