I blog here:
I teach compositing here:
This tutorial examines lens flares in Nuke. First, I go through the gizmos that you can download and install into Nuke to create lens flares. Then we examine the ‘Flare’ tool in Nuke, going into detail looking at the individual controls. Finally, we’ll construct a lens flare from scratch, only using standard nodes found in the default installation of Nuke.
You can download the Nuke project file at my blog: