Keying With Fusion: Fixing a Real-World Light Wrap

The third part of this advanced keying tutorials series for Fusion. A very useful method for dealing with foreground edges that are affected by too much real world light wrap – there are many uses for this versatile technique which is well worth knowing.
Part One here: https://youtu.be/agH3mOPbGhs
Part Two here: https://youtu.be/dB0nBYN05CA