In simple terms, Moiré can occur when capturing a subject with fine pattern details. An image sensor may reproduce this pattern with a Moiré effect because it lacks resolution. Moiré can be an issue when photographing clothes and can occur in architecture photography.
The example of Moiré:
The simplest way to avoid Moiré is by adjusting the position of a camera by moving it back/forward while photographing and/or changing your aperture setting.
When working with the Moiré tool, check areas that naturally have narrow stripes or a stripe-like pattern. If these have disappeared gradually, turn down the Amount and Pattern and re-check the original Moiré issue.
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Go to the Details tool tab.
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Go to the Moiré tool.
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Zoom to 100% in the Viewer and keep the Moiré area visible.
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Adjust the Amount value and the Pattern value in small increments.
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When the Moiré has disappeared, do not increase the Amount or Pattern values.