I have experianced terrible autofocusing with my sd14 so I am leary about investing in another sigma. When my focus is perfect, I can print a 5' x 7' print from a raw saved as a16 bit tiff and see no pixels. With the new SD1's 46 mp I cant imagine any canon or nikon coming close to the size and clearity. I just wish i could trust the autofocus. It my be just my camera but i know it isnt the lenses as it does the same thing with all 3 of my sigma lenses. Canon i have to admit has superior autofocus. I also wish the SD1 had luve image and video options but video may not be possible with foveon sensor.