I purchased a Canon 12.2 MP digital EOS SLR rebel xs1 camera. The landscape pictures I've taken so far aren't nearly as crisp or clear as the ones taken on my little Canon 7.1 MP powershot. I've tried manual settings, I've tried photographing in RAW, superfine, tried auto focus, manual focus, etc. The pictures are not crisp like my former ones with the smaller camera. What am I doing wrong?