[font color=\'#000000\']The SD9/SD10 have similar resolution chart readings to Nikon D100, Canon D60, 10D, 300D, etc., and in practical applications produce sharper pixel level detail having less roll-off. Since they have no antialiasing filter, their images are similar to a Kodak DCS-660 or 760 without its antialiasing filter.
The down side as far as image enlargeability is concerned is that when the subject material has geometric lines at other than 90, 45 or 180 degree angles, the 3.5 megapixel file array produces visible stair-stepping aliasing which is readily apparent in printed enlargements.
On the other hand, for landscape shots where the nature of the subject matter provides natural camouflage, the acutance is outstanding and the aliasing beyond Nyquist is perfectly acceptable because it's totally hidden.
In all, the image quality is extremely good within the constraints of ISO and subject matter.[/font]