The Canon EOS-5D Mark II raises the standards of the entire EOS line, as it is the first EOS digital SLR camera to offer both still and video capture. The Canon 5D Mark II also includes most of the hardware and software upgrades that the company introduced on the Canon 50D.
The Canon 5D Mark II also features the new DIGIC 4 processor, as previously seen in the EOS 50D. This should prove quite a step forward over the DIGIC II image processor seen in the original 5D, and means that the 5D series skips the DIGIC III entirely. DIGIC 4 has 4-channel readout, and 14-bit Analog-to-Digital conversion. With all of these changes to the image capture and processing pipeline considered, Canon is making some very impressive claims about the EOS-5D Mark II, describing it to us as offering the highest image quality of any EOS digital SLR released to date, and noting that it offers noise levels significantly lower than those of the original 5D.