D80 x D7k IQ tests

Started May 28, 2011 | Discussions thread
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Jack Hogan Veteran Member • Posts: 5,248
Re: Test Proper Shadow Recovery

Mr Physics wrote:

I really have to struggle to see the subtle performance differences between these two machines.

While Renato's tests are interesting, they are generic and not designed to show the D7k's particular strengths: there is very little information in the highlights and the shadows, for instance.

As leighton_w alluded, the biggest improvement in D7k technology comes from its reduced read noise, which results in substantially better dynamic range and low light performance - this is of great help to those of us trying to capture nuances in the highlights without losing detail in the shadows: landscapes and weddings come quickly to mind, but most images could benefit from the additional tonal range and detail in the hands of a skilled photographer/post processor - Ansel Adams would have loved this technology.

Take for instance a look at the following post by Guillermo Luijk, showing the results of bringing up shadows 6 stops (it's from a K5, which sports the same Sony sensor as the D7k) http://www.luminous-landscape.com/forum/index.php?topic=49200.msg405505#msg405505

I am curious. Can you try this kind of comparison, Renato?

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