Our lab tests measure resolution , dynamic range signal noise ratio.Resolution measured using ISO resolution charts , dynamic range measured using DxO Analyzer test equipment DxO Analyzer also used noise analysis across camera 's ISO range.We use real-world testing lab results inform comments buying guides.For compact cameras phones , judge real world handling photographic results alone.Read : Best camera astrophotography ( opens new tab ) Best camera weddings event photography ( opens new tab ) The best tripods ( opens new tab ) The best camera remotes ( opens new tab )