I just got a Nikon D3000 from a friend who wanted a piece of Ham equipment I had. I have a question about the camera. When its on and im in auto mode why dont it show what im pointing at on the screen? It only shows the image on the screen after its taken? Is that because its a SLR camera? Do any SLR do what I talking about? I got this for free but still I dont know if I will like it.