1 stop of DR -how important it is and for what kind of photography

Started Apr 7, 2012 | Discussions thread
Safesphere
Regular MemberPosts: 149
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Re: bits completely unreleated to dynamic range: Yes it is
In reply to Blade93012, Apr 12, 2012

Blade93012 wrote:

For a 14-bit system, you will be limited to a DR of 14 bits and no more, irrespective of noise.

Each time you resample your image down twice (combine 4 pixels into 1), you increase your DR by about an extra stop in shadows. If your take a 14-bit 36-mp image and resample it down to about two and a quarter mp for your monitor, you conceptually could have 17 stops of DR from a 14-bit ADC.

Even without resampling, note that DXO Mark measures the DR of D800 at 14.4 EVs with a 14-bit ADC. The lowest signal in a digital system is not 1 (LSB), it is less (quantization noise).

All audio CDs contain 16-bit values encoded in a 1-bit stream. And all Super Audio CDs do the same with 24-bit values.

I am sure Peter 13 will tell you all about this

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