The test is done in 2003.
1Ds won pentax 67 film scanned by Imacon in terms of details, and is on par with the 67 film scanned by drum scanner.
he further said:"In the above artcile I make the claim that the 1Ds produces images superior to medium format drum scans. I took a lot of flack for this when the piece first appeared, even though many pros who I have spoken with and who have started working with the camera are also coming to the same conclusion. It therefore gives me a chuckle (and no small satisfaction) to report that the review of the 1Ds in this month's Shutterbug magazine by Jay Abend comes to the same conclusion as I did."
I am not sure.. but it seems convincing. But I have been seeing lots of very great image quality medium format film scanned pictures in Clubsnap, they reveal so much details that i thought DSLR can never produce.