Actually, the 1DmkII and 1DmkIIN use the same 8.2mp sensor (CMOS). DP Review describes the differences in the top paragraph... http://www.dpreview.com/news/0508/05082208canoneos1dmkiin.asp From URL: Canon has today announced the successor to the EOS-1D Mark II, this updated camera carries the N suffix to indicate its moderate range of updates. The EOS-1D Mark II N has the same 8.2 megapixel