When the M9 arrived I realized that the specification for the chip (6 micron CCD, no AA filter 24x36mm) is identical to the typical 39 meg medium format back, but exactly half the size. This means that if you stitch three frames overlapping 50% you end up with a file that looks like it came our of an MF system. At a recent workshop I brought two 24x30 inch prints - one three stitched with the M9 and one taken with a Hasselblad H3d-39 - of the same landscape and more than half of the participants guessed wrong as to which was made with medium format. I've been spending a lot of time in the past two months perfecting my stitching technique, which I now use a lot.
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Woody
http://www.woodycampbell.com