Sooo I've been shooting with the 90D for a while and ngl, the built-in flash is basically just a placeholder lol. For your situation, I would suggest ...

Sooo I totally get the anxiety. I remember my first big event after switching to mirrorless and I was honestly terrified my flash would just stop talk...

Story time: I went through this with my Canon glass a few years back. I used to leave a “protective” UV on 24-70/70-200 basically 24/7… and unfortunat...