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Samsung Galaxy S4: "Chasseur d'Images" review

By Chasseur d'Images - Wednesday July 24 2013

Mobile Review
Introduction | Android boosted by Samsung | Getting started & ergonomics | A plethora of ways to explore | Field Impressions | Measurements | Conclusion

Reference Pattern DxOMark

At 20 Lux under tungsten lighting, the white balance is correct and the colors are solid, but the S4 Galaxy defaults to strong underexposure... as is the case for many other smartphones.

At 700 Lux under natural lighting (picture in daylight conditions), the color balance is good. The test scene is rendered very well, even in the face of strongly contrasting subjects. It is outdoors, in bright light, that the S4 delivers the best pictures and maximizes the potential of its 13 megapixel sensor.

mire-1

Tungsten (20 lux)

mire-2

Day light (700 lux)



Autofocus

Autofocus is fast and accurate both in auto and trigger mode with very few overshooting.

autofocus-1-300

Low light

autofocus-2-300

High light



Color shading

color-shading-1

Artificial light (A) - 20 lux

color-shading-2

Day light (D50) - 700 lux



Color accuracy

Measurements under controlled laboratory sources indicate a white balance adversely affected by underexposure on everyday subjects, resulting in a brownish rendering. In daylight, the color balance becomes excellent with natural, rich, saturated colors.

colors-1-300

Artificial light (A) - 20 lux

colors-2-300

Day light (D50) - 700 lux



Flash

Good overall image quality with or without additional light source: nice colors, good exposure and sharp details.

flash-uni-300

Flash uniformity, 5 Lux

flash-2-300

 

Detail, acutance & visual noise

Highlight details are exceptionally well rendered. Below 100 lux, the acutance decreases and the noise increases. To compensate for this phenomenon, Samsung clearly applies a smoothing of the details and gives an impression of blur on certain textures (hair, leaves...).