Manual Chromatic Aberration

Lens dis­tort is fine but some­times you want more con­trol, spe­cial­ly in animations

1. Add a Separate RGB node and plug your image into it.
2. Add a Combine RGB and con­nect every chan­nel in it’s respec­tive socket.
3. Now you’re free to add nodes in between the two. Use a trans­late node to move the chan­nels and sim­u­late axi­al chro­mat­ic aber­ra­tion, or get cre­ative with the Rotation, Scale and Image Distort nodes.

You can ani­mate them like any­thing else in Blender, move your cur­sor over the X and Y prop­er­ties and press the “i” key.