DNG artefacts in ACR ?

Started Apr 3, 2013 | Discussions thread
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DNG artefacts in ACR ?
Apr 3, 2013

I have been researching the options of a K5IIs and in that,I tested the raw files from this model. I used the DPR files from iso 3200 and up that you can download on the DPR raw comparison page. When I loaded the dng files in ACR (CS6), I was checkingfor detail and color in the high iso fils. Than I saw the beetle, and the color of the roof and the background of it. Even with all settings to default, no sharpening and no NR I can see checkered pattern lying on top of it. Just like what can be seen in the on the comparison page below:

What causes this pattern ? Is it related to DNG ?

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Pentax K-5
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