The camera of the samsung galaxy s9 plus sweeps the competition
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The new Samsung Galaxy S9 and Galaxy S9 Plus terminals have an adjustable opening that offers them a significant advantage over the competition in all situations of ambient light. This has led the South Korean to dominate the DxOmark test where the Samsung Galaxy S9 Plus has obtained a result of 99 points to be ahead of the Google Pixel 2 with 98 points.
Samsung Galaxy S9 Plus dominates its rivals with its impressive camera
Both terminals feature a super bright lens with an f / 1.5 aperture, the widest aperture currently available on any smartphone. This provides an obvious advantage in low light situations but at the same time it is a problem when we are going to take photos in high light conditions, this can overwhelm the sensor and produce a washed image.
To solve this, Samsung has installed a mechanical aperture of variable size that can change between f / 1.5 and f / 2.4 to adjust perfectly to all the conditions of ambient light. A wider aperture like f / 1.5 creates a greater distinction between the parts of the image that are in focus or out of focus, something that is often desirable in portrait-style photography. However, smartphone lenses are so small that even an f / 1.5 aperture shouldn't bring a significant advantage in this regard.
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The second effect of changing the aperture is that reducing its size often improves the quality of the final image by increasing contrast and sharpness. It is difficult to make a lens that can offer both a large aperture and excellent image sharpness at the same time, lenses generally produce their sharpest images when the aperture size is reduced.
As smartphone lens apertures get wider and wider due to low light in photography, there is an increasing risk of compromising the quality of daytime photography. This is where the Galaxy S9's variable aperture comes in, as a way to deliver the best image quality in a variety of lighting conditions.
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