See also the review of the Sigma dp2 Quattro.
The Sigma dp0 Quattro extends the focal length range of the Sigma dp Quattro line. Its 14mm f/4 lens is equivalent to a 21mm f/5.6 on a full frame camera.
In my review of the Sigma Merrill and Quattro cameras, this demanding landscape scene maxes-out the dynamic range of the Sigma dp0 Quattro. It required some special handling to extract a good image.
Includes entire frame images of various sizes up to full resolution at f/4 - f/9. Shadow detail is of particular interest and discussion here.
Also shown are the Sigma Photo Pro processing settings, RawDigger histogram, and Photoshop adjustments following conversion to 16-bit TIF.