The Screen and Dodge modes

In this exercise we'll take a look at the more robust lightning modes which…include screen which is your Go To mode where lightning is concerned as well as…the two Dodge modes, Color Dodge and Linear Dodge add.…And I'm going to go ahead and zoom in on the image so that we can see it at…the 100% view size.…And I'll switch the Blend Mode from Normal to the first of the light modes,…Lighten, and you can see that we end up keeping the lightest pixel on a…channel-by-channel basis which ends up creating some fairly harsh transitions in a few spots.…

So some of the pixels end up remaining entirely opaque, other pixels drop away…entirely to transparency and then there's a variety of pixels that get along…differently on a channel-by-channel basis.…Compare that to what happens when we switch to the Screen Mode, which I'm…going to do by pressing Shift+Plus, because Shift+Plus always advances to the…next mode in the list.…And notice that now we get a uniform brightening mode, we're not left with…any harsh transitions.…