7D is a 18mp SLR with 19 point auto focus system and dual DIGIC 4 processors. The APS-C sensors have a 1.6 cropping factor (i.e. not full frame). HD video recording in 1080p or 720p modes. The camera has a decent heft to it and the dual sensors doesn't just benefit sports photographers. The 1.0x magnification eyepiece is an unexpectedly welcome feature.