ABSTRACT
Part 2 - Using the red channel layer to darken the sky 6. I have named the background copy layer as the Red Channel (really a layer) by clicking on its name in the Layers panel (just so things don’t get too confusing). Duplicate the Red Channel layer by dragging it to the New Layer icon and change the blend mode to Multiply. This step is designed to darken the sky and create a lot more drama. Choose ‘Merge Down’ from the Layer menu to create a single darkened red channel layer. Now click on the background layer in the Layers panel to select it and then from the Create Adjustment Layer icon in the Layers panel choose ‘Levels’. Don’t make any adjustment - just click ‘OK’ in the Levels dialog box. We will use the adjustment layer mask on this adjustment layer to mask or hide everything in the Red Channel layer except the sky, which we will leave visible in order to darken the sky below.
