Smartphone Cameras Megapixels are Not Everything

Who with his Smartphone camera tack sharp photos at concerts or on vacation want to do, watch before buying usually on the mega-pixels. The idea that the number of megapixels alone is decisive for the quality of images is tempting. It but isn’t, even if many manufacturers want to suggest that in their advertising – this includes, for example, the Nokia Lumia 1020 with its 41-MP camera.
Pixels Capture Light Reaches the Sensor
At least in theory, more pixels deliver even better image quality. A pixel is a pixel on the camera’s image sensor, which measures mostly around 3 mm on the diagonal in today’s smartphones. The sensor captures using the pixel incoming light and transforms this into a digital signal – depending on the sensor in the fraction of a second of raised captures more light, more complexer and the photo is color-faithful. Therefore suggests the following idea: the more pixels on the sensor sit, the better the image quality.
What It Depends on What Image Quality Delivers A Camera?
However, this assumption is not fully correct, as it is in image quality in addition to the number of pixels to another important detail: the pixel size. The larger the Bildpunktesind, the more light catch them, and the result is more accurate. And that is the crux of Smartphone cameras: the construction requires generally a small image sensor size. Be sure several mega pixels, so several million pixels, housed, the individual pixels are so small that decrease the image quality despite high resolution.
What Characterizes Many Smartphone Cameras
In addition also the type of image sensor decide the zoom and the flash light on the quality of the photos taken. Most CMOS sensors are used in Smartphone cameras, because it can be built smaller than CCD sensors and are slightly cheaper to manufacture. With regard to the sensitivity and the noise share the CMOS sensors in the cut but cut worse something.
In addition, most Smartphone cameras due to the flat construction with a digital are equipped instead of an optical zoom. These are but only to a zoom of the image. The original resolution is reduced again. The LED flash upcoming mobile phones often to use has only a low range. Most devices shoot therefore fuzzy, not particularly faithful to color or noisy photos in low light conditions.

When Buying on the Pixel Size
To find a smart phone with a good camera, you should set up you not only after the dissolution, but also according to the pixel size. This can be determined based on the size of the sensor. The sensor provides an indication of the quality of the picture even visually. Watching the lens under the glass cover of the Smartphone camera. The larger the diameter of the aperture, the more light can invade. The lens is, however, very small and the Smartphone at the point the camera particularly thin built, you should expect no outstanding photos despite promises of high mega pixels.
Summary

  • Advertise Smartphone cameras with higher resolutions, but not alone the number of pixels will decide not only on the quality of the photos
  • Also the size of the sensor and the pixels – and the size ratio of pixel sensor are decisive
  • CMOS Digital let instead of CCD sensors, rather than optical zoom and flash light with low range mobile photos look worse compared to conventional photos
  • When Smartphone cameras on the resolution and the size of the sensor, recognized by the aperture diameter

Gallery

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