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On the website, it has declared: 3 S: G" F5 ?3 w+ s( u2 h# x( l0 `$ phttp://dxomark.com/index.php/eng/DxOMark-Sensor/DxOMark-metrics ' K% t. j$ H/ a2 V+ O9 W& [* _9 M; ?+ r/ o
I think the Sensor scale they have created sounds reasonable and credible. The comparisons were performed not based on single test but several times, it is fair.' Q. T& [) @' I, e! `- z
Besides, this website has been used by many professional instituts which makes it more reliable.