70D Dynamic Range is actually great, despite what DXOMark says

Started Jan 21, 2014 | Discussions thread
TTMartin Veteran Member • Posts: 7,304
Re: Noise reduction before raw file is written??????????????????

Tourlou wrote:

Where did you take this information? I want your references. By definition, a raw file is a map of the electron count of each photosite, not pixel. What can be applied by the manufacturer, is a correction of the luminance value per pixel to cover for manufacturing variations. The other map that's applied to a raw file is the defective (dark/hot) pixel correction. I never read anywhere that a noise reduction is applied at the raw file level.

Sony.net - Ultrahigh-Speed High Picture Quality CMOS Sensors Using Column-Parallel A/D Conversion

'The article presents the high-speed imaging technology based on column-parallel A/D conversion and the noise reduction technology used in this device.'

Anyway, this would not correct the shown images. The blacks are not black on lifted images. The image is fulle of read out/ dark noise. Maybe because of hot weather or a hot sensor (use of live view ).



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