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Sigma DP1 Merrill vs Nikon D600 Resolution Comparison

Can the 14.25-megapixel Sigma DP1 Merrill compete with the 24-megapixel Nikon D600 in terms of image quality, particularly resolved image detail?

  Sigma DP1 Merrill Nikon D600
Lens: 19mm f/2.8 (28mm equivalent) Zeiss 28mm f/2 Distagon (for this test)
Sensor type Foveon true-color 14.25 X 3 megasensels* (effective) 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 = 35.9 X 24.0mm
Finished image size 4704 X 3136 = 14.75 megapixels
88.6 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)
37.8 MB
(14-bit lossless compressed NEF)
Sigma DP1 Merrill

To my review of the Sigma DP1 Merrill in Guide to Mirrorless (ALLVIEW) I’ve added a resolution comparison between the Sigma DP1 Merrill and the Nikon D600. The comparison pays special attention to detail as well as color aliasing.

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.

Fall Color, Cottonwood Canyon
Sigma DP1 Merrill vs Nikon D600
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