I do like using primes on my APSC cameras but, prime lenses may not always be the best solution in a fast moving scenario; even when shooting with two bodies in tandem
I was shooting portraits of people in costume with their faces painted at a local Day of the Dead celebration. I was shooting with two Sony APSC bodies in tandem and just happened to have an 85mm on one body and a 50mm on the other. I also had a 30mm and a 12mm with me but, I had the two longer lenses on the cameras because I was standing in the audience in front of a stage where dancers were about to perform. The 50mm covered most of the stage and I would be able to single out dancers with the 85mm. That seemed like a good plan until I was booby trapped
I noticed a neat shot of a little girl in full regalia with her face painted sitting on her dad's shoulders so she could see the performers on the stage. The shot was "O.K?" with the 85mm but didn't show her dad.
I switched to the 50mm, which was better but, still didn't show as much of the dad as I wanted to see!
No sweat - just zoom with my feet a bit, right? WRONG
I stepped back to get the shot and my foot ended up in a squirrel hole about six inches (16 cm or so) deep and I ended up falling. I scraped my arm pretty badly and dislocated my pinkie finger, thus ending my shooting for the day
Moral of this story: No matter how many times "zooming with your feet" comes up in a zoom vs. prime lens comparison as a simple solution, it is not always as easy as it seems Maybe I should have been more careful but, I certainly did not expect to find a hole this deep in the area that the audience was standing.
My next Day of the Dead (hopefully this Friday) will be with a zoom on one camera (probably my 28-75mm) and the 85mm on the other...