I'm going to move someone else's stuff from a table
Why would you move someone's stuff?
I want to put my camera there, but someone placed their stuff on top of it so I cannot place my camera there.
It is kind of rude to move someone's things without asking first. Why is it more important for your camera to be on the table than their things?
My camera is very important to me, and I need it to take video of the festival.
But someone else is clearly using your spot so why don't you put your camera somewhere else nearby?