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EXCERPT page containing first few paragraphs. 2021-12-02 16:21:43

Sigma dp2 Quattro

Sigma dp Quattro Sensor Design

The mid-2014 Sigma dp Quattro cameras promise the detail approaching that of a 36-megapixel Bayer sensor. The newly designed sensor utilizes a top layer that captures full monochrome-grade spatial resolution, with full color information derived by the panchromatic sensitivity of all layers.

It could be stated as “full color derivation by virtue of the same physical location for three color layers”, very different from color information separated spatially as in a conventional Bayer matrix sensor (Nikon, Canon, Sony, Fuji), the Bayer approach leading to loss of both spatial and color resolution.

I printed my favorite tulips shot 6 feet wide (~2m) and I deem that it exceeds the quality of my 4X5 film prints of a similar size (they’re on my walls, and the DP Merrill print is unequivocally better in color and contrast and detail, believe it or not).

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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.

Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.

  • Make better images by learning how to get the best results right away. For example, the best way to set up your Sony camera.
  • Save money by choosing the right lens for your needs the first time, particularly with the numerous lenses available for Sony.
  • Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning—best practices and how-to and processing parameters are discussed and shown.
  • Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to full camera resolution, plus large crops.
  • Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
  • Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
  • Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.

Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Sony.

Sigma dp Quattro Spectral Sensitivity by layer
Sigma Foveon X3 direct image sensor vs Bayer color filter array sensor matrix

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