The Luminous Landscape has published an article titled 'Measuring Megabytes' which compares a range of high end digital SLRs, medium format backs and 4x5 medium format film drum scanned. The medium format backs range from 22 to 39 megapixels, digital SLRs are represented by the 16.6 megapixel Canon EOS 1Ds Mark II, 12.7 megapixel Canon EOS 5D and the 11 megapixel Canon EOS 1Ds. If you want the ultimate resolution and money is no object there will be plenty of interest here.

Click here for The Luminous Landscape 'Measuring Megabytes' comparison