Do you guys have any guidelines on how to avoid import taxes on things like camera equipment? Or is this even a problem when flying in? I have some very new stuff, I wont leave it in the original boxes or anything. I am just unclear on what the threshold is for stuff to be considered "new" and taxable. Any advice on this topic is appreciated. 

Make it look a bit used, take some photos so in camera. All tourists bring cameras so just be cool and casual-friendly.