This method of node interaction allows you to break up the RGB channels of your image into separate nodes, and then recombine them back into a single output. Though many of the chroma effects will remain the same, the biggest benefit of this tool is the physical changes you can make to the channels - position, scale, rotation, etc. Often employed for 'retro'-looking footage, as well as fixing mis-aligned channels on digitised magnetic tape.
00:11 - splitter/combiner node
01:48 - split channel (retro) look
02:24 - chromatic aberration
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Narrated and edited by Daria Fissoun
Materials from Anti-Social (2015)
Director: Reg Traviss
DOP: Bryan Loftus
Producer: Mouktar Mohammed
RST Pictures
Recorded at SAE Institute London (http://www.sae.edu/)
Screen capture software is CamStudio by RenderSoft (http://camstudio.org/)
Intro and outro by Kevin MacLeod (http://incompetech.com/)