www.dxomark.com/index.php/eng/DxOMark-Sensor
Data normalization DxOMark Sensor ranks cameras based on real-life photographic scenarios Objective measurements of RAW images are an essential basis for any analysis of digital cameras, but such measurements were neither possible nor available until now. DxO Labs has developed a new scale for digital camera image quality performance, called DxOMark Sensor, to serve as an additional tool to help photographers rank and compare digital cameras. This scale is based on three underlying metrics, Color Depth, Dynamic Range and Low-Light ISO, each one tied to a real-life photographic scenario: landscape, studio & portrait, and photojournalism & sport.
Read more on the logic behind the DxOMark Sensor scale architecture. This interactive graph shows the ranking for approximately 50 currently-available digital cameras on the DxOMark Sensor scale and its three metrics (click on the different tabs to view the performance and ranking of cameras versus each metric). You can switch the x-axis for time, price range, or resolution, as well as filter the ranking by brand, resolution, sensor size, time and price (USD). You can also access the comprehensive set of RAW-based measurement data, curves, and plots for any given camera by clicking on its product sheet (left column).
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The DxOMark Sensor scale aggregates the performance values of its three constituent metrics, Color Depth, Dynamic Range, and Low-Light ISO. Each metric is associated with its real-life photographic scenario (studio/portrait, landscape and sports/action respectively), and compiles the results of thousands of objective digital camera sensor measurements. On the DxOMark Sensor scale, the higher the score, the better. The scale is kept open, anticipating that sensor technology will continuously improve over time. Color Depth or Color Sensitivity indicates both the breadth of the color spectrum and the degree of fine separation between colors that a camera can distinguish. The higher the color sensitivity, the more color nuances can be distinguished, which is of particular importance for portrait and studio photographers. This metrics indicates the maximum Dynamic Range, or the greatest possible amplitude between light and dark details a given sensor can record. It is plotted in EVs (exposure values) or f-stops, with each increase of 1 EV (or one stop) corresponding to twice the amount of light recorded. High dynamic range is an essential consideration in landscape photography.
As cameras improve, the highest ISO setting to produce 30dB images will continuously increase, making this scale open. The Low-light ISO metric is of primary importance in photojournalism, sports and action photography.
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