In this short tutorial, Unmesh Dinda of PiXimperfect lays out his “Sharpening Separation” technique: a more advanced sharpening technique that allows you to sharpen your images as much as you like without creating those dreaded halos. As most of you already know, digital sharpening works by adding contrast to the edges of an image—darkening one side of the edge and lightening the other. It works well, giving the appearance of a sharper photograph, but a consequence is the creation of…