16 megapixels and aps-H. Nothing revolutionary but looks like a good camera. I'm surprised it is only 10 fps. I think the latest D300S from Nikon is doing 12 fps. However, that's 12 fps at 12 megapixels vs 10 fps at 16 megapixels. I think I would rather have the extra megapixels but if I was a sports shooter I'm not so sure... There better not be any autofocus problems like the Mark III...