Did you ever want to know how your choice of camera relates to image clarity?  For instance, how does Arri’s more expensive 2K camera compete with RED’s 4K camera?  Well, if you really really really want to know, Panavision and Canon got together to try to explain it.  Check out videos of the lecture on Panavision’s website.  Be warned, it can get a little complicated.

After watching all of this, you might just throw your hands in the air and simply decide based on what you can afford.

Demystifying Digital Camera Specs [Panavision]