NPhoto - - Nikon Skills -

We’ve all seen the ef­fect where strange lines or colours ap­pear in dig­i­tal im­ages. It’s called moiré, and it usu­ally oc­curs in ma­te­rial or sur­faces with fine lines. The rea­son for its ap­pear­ance has to do with the fre­quency of the lines com­pared with the pixel count on a cam­era’s sen­sor. If the lines closely match the width of a pixel (or ex­actly match the width of a group of pix­els) then you get moiré. It’s hard to re­move com­pletely but Light­room’s Ad­just­ment Brush can help. Paint with the Brush, then use the Moiré slider to tone down the colour pat­tern.

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