Have you read Michael's review
or any of the other threads ?
An excerpt from Michael's review:
"The other area where the Canon surpasses the Epson is in grayscale range. The gray gradient shown on this test image has 20 segments. The Epson has trouble differentiating between the two very darkest segments, while the Canon clearly shows a distinct separation in the darkest tones.
This additional shadow differentiation is clearly visible as well in the test image's upper left panel, the one of the mother and child. In the Epson print the woman's body, clothed in a black leotard against a black background, is barely distinguishable. On the Canon print her entire body can be clearly seen. Quite stunning performance."