SD1, in the context of it competing against medium format digital cameras -- whose prices don't generally fall below five figures. Trouble is, as professionally inclined, well designed, and durably built as the SD1 may be, it still only packs a 15.3 megapixel CMOS sensor that spans 24mm x 16mm (or APS-C size). That means it'll have to earn its stripes on the battlefield of image quality, which it'll be ready to march onto in less than a month's time. Sigma promises to start shipping units in early June, so if you have the cash to spare (plus a little extra to fund a suitably awesome lens), you can start building up your anticipation today. Full PR and camera specs can be found after the break.