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When I use the warp tool to straighten a horizon I'm left with big bands of damaged pixels throughout the image. This issue happens in both Photoshop & Lightroom. This issue is new, I've used this tool much more drastically in the past & quite regularly. It first occurred about a month ago. (The transform tool is the easiest way for me to display this issue...but it also occurs when I use Curves layers, or blend multiple exposures using luminosity masks, sharpening, noise reduction etc...)
More info:
Shot on a canon 5diii in RAW and edited as a RAW file on Mac OSx 10.10.5
Camera Raw, Photoshop, and Lightroom are all up to date.
Here are some screenshots:
RAW SCREENSHOT
PHOTOSHOP SCREENSHOT (note the banding in the sky)
LIGHTROOM (just to show that it is also plaguing my images with this banding)
Thanks,
Nik
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I've seen something similar before (moire-like pattern), and it turned out to be the lens correction profile. Try to turn lens correction off and compare.
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It is the lens correction profile, as well as the transform tool. Unfortunately I would like to not abandoned these tools all together as they do prove to be useful.
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Found a helpful tutorial for you.