Quite a few readers have written to say they are looking for a high quality compact camera to replace or supplement a DSLR. The Sigma DP1/DP2 Merrill is one camera that produces very high per-pixel quality.
Now added is a Canon 5D Mark III vs Sigma DP2 Merrill comparison.
I show one very large actual (native) pixels crop from each, along with the entire frame along with a variety of resampled-to-match crops so that the two cameras can go head to head.
|Sigma DP1 Merrill / DP2 Merrill||Canon 5D Mark III||Nikon D600|
|Lens:||19mm f/2.8 (28mm equivalent)
30mm f/2.8 (45mm equivalent)
|Canon 24-70mm f/2.8L II||Zeiss 28mm f/2 Distagon (for this test)|
|Sensor type||Foveon true-color 14.25 X 3 megasensels* (effective)||Conventional 22.3 megasensel Bayer-pattern sensor requiring demosaicing: 1/2 green, 1/4 red, 1/4 blue photosites||Conventional 24.16 megasensel Bayer-pattern sensor requiring demosaicing: 1/2 green, 1/4 red, 1/4 blue photosites|
|Sensor size:||APS-C = 23.5×15.7 mm||Full-frame = 36.0 X 24.0mm||Full-frame = 35.9 X 24.0mm|
|Finished image size||4704 X 3136 = 14.75 megapixels
88.6 MB 16-bit RGB TIF
|5760 X 3840 = 22.1 megapixels = 22% higher spatial resolution
132.7 MB 16-bit RGB TIF
|6016 X 4106 = 24.16 megapixels = 28% higher spatial resolution
145.1 MB 16-bit RGB TIF
|RAW size (for this test):||62.5MB
(X3F lossless compressed, bit depth unclear)
Canon CR2 RAW
(14-bit lossless compressed NEF)