As well as shooting our studio test scene at each camera's lowest sensitivity we also shot it at ISO 800 and 1600. At ISO 800 the K10D delivers about the same detail as the Nikon D80 and Sony DSLR-A100 with the Canon EOS 30D looking cleaner and sharper. At ISO 1600 it's more difficult to pick a winner, levels of detail are similar however the Canon EOS 30D perhaps has cleaner shadow (dark) areas.