Canon's DSLRs range all the way from the original EOS Digital Rebel, an entry-level model with a 6.3 effective megapixel imager, up to the 16.7-megapixel EOS-1Ds Mark II. We've prepared an in-depth table comparing all six of these cameras, which will allow readers to see how the line progresses, as well as where each camera differs from its siblings. The table also makes interesting reading if considered from the point of view of what an impressive job Canon has done, not only in finding areas to differentiate the models from each other, but also in sharing technologies - both in hardware and firmware - across the line, presumably allowing it to recoup its research, development and tooling costs across a much larger number of cameras than would otherwise be the case.