Review - Sigma dp3 Quattro.

Started 10 months ago | User reviews thread
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Gate bois Senior Member • Posts: 1,366
Review - Sigma dp3 Quattro.
11

I acquired this digital camera a little over a month ago. Regarding its use, access to different settings is relatively intuitive. I use it almost exclusively in manual mode. The different settings, opening, speed, iso, ..., are easy to access.
Regarding the quality of rendering, the IQ is simply exceptional, allowing a level of restitution of details impressive. The IQ is comparable to a 40 megapixel Bayer sensor, see a little more. Based on my tests and comparisons, the IQ is the highest compared to digital cameras on the market with a definition less than 40 Mpix, all technology combined.

The color accuracy is very good, the subtle tonal variations are very well rendered.
The rendering quality is exceptional up to 400 iso. Exceptional to very good up to 800 iso (depending on the scene being photographed, and the lighting source). Good at 1600 iso. At 3200 iso low res mode will have a correct result.
The separation of colors and contrasts becomes less good at 800 iso. The elements can contrast and the colors can differentiate, tend to get confused.
The noise is almost absent until 1600 iso (after treatment).
There is virtually no loss and drifts (red and green spots) of colors up to 1600 iso, even in shaded areas.

For optimum results that exploit the capabilities of the quattro sensor, it is necessary to process photos outside of SPP.
The examples accompanying this test were opened with the latest version of SPP and processed with the latest version of RawTherapee.
SPP in portrait mode, sharpness -2, NR luminance 0 (completely left).
NR chrominance 0 (although leaving the default value proposed by SPP apparently gives good results). 16-bit TIFF backup.
Then the photos are processed with RawTherapee.

Results very crisp, rich in details, provide a very good feeling of roughness of materials, textures, and a very good sensation of relief (3D).

iso 400

100 iso

800 iso

250 iso

800 iso

400 iso

125 iso

200 iso

125 iso

100 iso

160 iso

Sharp edges, without smoothing and artefact. Pixel precision. Crop 200 %

high iso

1000 iso

1600 iso

1600 iso

3200 iso low res

1600 iso

Interpolation test:

Original Hi res

Interpolation at 39Mpix (7680 pixels wide)

Interpolation at 60 Mpix (9408 pixels wide).

Hi res vs Low Res

Crop 100 - 60 Mpix

Hi

Low

Hi

Low

Hi

Low

Test for a different rendering.

Sigma dp3 Quattro
20 megapixels • 3 screen • 75 mm
Announced: Feb 10, 2014
Gate bois's score
4.5
Average community score
3.7
bad for good for
Kids / pets
acceptable
Action / sports
mediocre
Landscapes / scenery
excellent
Portraits
great
Low light (without flash)
good
Flash photography (social)
okay
Studio / still life
excellent
= community average
Sigma dp3 Quattro
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