Just a silly question that I'm wondering about at the moment. Why is chromatic aberration purple? Well, usually purple anyway. I guess I'm interested in the mechanics of it and can't seem to locate an answer. I understand why chromatic aberrations occur thanks to this article:
https://www.photographytalk.com/chromatic-aberration-and-how-to-fix-it-in-photoshop-or-lightroom but it doesn't explain why they're purple.
Just wondering...not a crisis