ATTENTION!!! I now own a RING LIGHT and will be posting photos of me practicing with it.
The goal is to get the lovely ring of light surrounding the pupil to brighten up the iris dramatically.
From trying it out on my son I learned I need to bring the light further away and use a zoom lens to capture it correctly.
In his photo below, the ring of light shows up in his pupil instead of his iris!
I think I got it to work the way it’s supposed to! Have to keep the ring light very close to the subject to get it to work.