He used the same settings I would use with that camera if I were trying to capture exploding watermelon shots in crisp juicy detail.
(But the apologists are out in force, and not bothering to explain why the top #Enemedia was there for the first time in ages, either.)
The photographer in the video claims that he attends most President Trump rallies.
He mentioned that he was planning to travel to the next several President Trump rallies as well.
I think the assassination was premeditated and a conspiracy—but I also believe this photographer is telling the truth.
The big news here is that his cell phone worked just fine during the event while Secret Service (imho lying) claimed their cell phones did not work during the same period.