https://www.youtube.com/watch?v=_NaUmqPUyAA
Spherical and Chromatic Aberrations
https://www.youtube.com/watch?v=8R29jGaSdkE
PHYS 130 Optics Part 4: Aberrations
https://www.youtube.com/watch?v=v6f8JuRxCLk
Lens aberrations
https://www.youtube.com/watch?v=RZE7mFwHg-M
The Lens - Monochromatic Aberrations (Spherical, Coma, Petzval, Distortion) - Episode 3.2
The Lens - Chromatic Aberration - Episode 3.1
https://www.youtube.com/watch?v=MMp87Iw-WoI