I am a rookie in photography but unfortunately a techie too. So I would like to get one thing clear in my head. Based on my reading I easily understand why the optical viewfinder of a dSLR gives a more accurate view of the scene than in the case of point and shoot digital cameras. But why is it that the LCD screen is able to give a better view in case of dSLR. Is it because expensive and bigger sensors are used. Would I correct if I say that I am not taking advantage of the SLR principle if I am looking into LCD screen instead of viewfinder of a dSLR when taking photos.