Came upon this article of a woman who lost her husband and when the photographer was taking photos a rainbow kept appearing in the images. Sure it's a sad story, but your photographer wasn't very good if these "rainbows" kept showing up because she's shooting into the sun.
https://www.today.com/parents/wisconsin-mom-believes-late-husband-sent-rainbows-photo-t120286
Thoughts?
https://www.today.com/parents/wisconsin-mom-believes-late-husband-sent-rainbows-photo-t120286
Thoughts?