Why is the DR of the D3s no better than the D300?

Started 11 months ago | Discussions thread
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jfriend00
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Why is the DR of the D3s no better than the D300?
11 months ago

I'm contemplating getting a used D3s for lower light sports shooting.  When looking at the DXO measurements for it, I was surprised by a couple things:

1.  The D3s has basically the same DR as the D300 (12.2 vs. 12).  How can that be?  With such a lower noise floor (almost 2 stops better noise performance) and bigger pixels and same resolution, how can the D3s not also have better DR?  I was thinking that an FX camera would have to have better DR than a DX camera of similar generation.

2.  Is the D610 really 2.4evs higher in DR than the D3s (14.4 vs. 12)?

Obviously the D3s is great at high ISO in low light.  But, I was surprised it was so low in DR.  Why would that be?

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