More definitive specs and pricing have surfaced for Canon's EOS-7D DSLR for the upper mid-range. A combination of a seemingly authentic product poster as well as sources for Canon Rumors points to the camera actually being a crop-frame (APS-C) unit rather than the full frame of the 5D Mark II but getting high-end features. It would have an 18-megapixel sensor (versus the 5D's 21) but, with dual