Linda From Maine wrote:
Clara, take a look at this depth of field calculator. I plugged in 25 feet distance, though I'm terrible at estimating other people's photos this way
But, at 25 feet, you have twice the depth of field if using f/5.6 rather than f/2.8
https://www.dofmaster.com/dofjs.html
You have some very expensive gear; controlled tests and comparison of your results will be worth your efforts!