Lightroom: LR4 problem with 5DmkII RAW-s

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  • Problem
  • Updated 7 years ago
  • (Edited)
Merged

This conversation has been merged. Please reference the main conversation: Lightroom 4: Moire when Sharpening and Profile Correction used together

Hello,

I've got problems with 5DmkII RAW processing especially with high ISO images. Sometimes the files I exported shows a "ScreenDoor" effect, and its very irritating. The effect is more visible, when I downsize the exported picture in LR.

I attached the downsized export (first picture) and the downsized original JPG (which was inside the RAW). The original RAW's attached JPG show none of this artifact. It also can't be seen in the 2003 process, but the 2010 and 2012 it's visible.



Thank you for your support.
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Tamas Koncz

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  • frustrated

Posted 7 years ago

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Eric Chan, Camera Raw Engineer

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Can you provide an original raw file (.CR2) that demonstrates the issue? You can send to me (madmanchan2000@yahoo.com) via YouSendIt.com, Dropbox, etc.
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Tamas Koncz

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I send the original .CR2 to your mail address. Thank you for looking at.
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Eric Chan, Camera Raw Engineer

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Brief conclusion:

The pattern is caused by noise becoming distorted by a lens profile correction (warp).

I suggest applying Luminance noise reduction and using more Masking when applying sharpening. This avoids the pattern entirely.