I'm curious why everyone is claiming it's thought to be a 'ghost' or 'paranormal', when was that mentioned other than the second poster saying "I sure hope you weren't thinking this was some sort of paranormal"?
Simply put, I wasn't sure what it was, nor were my brother or uncle & cousin for that matter, I posted asking if anyone knew what it might be.
I'd agree it's a spec of dust, if not for the shape of it, I can't feature a piece of dust forming a nearly perfect circle like that. Nor would I assume it to be a reflection of light either, considering the time of day and the fact that the only light in that area is coming from a camp fire- behind the camera, not in front of it. (possibly a flash too, my brother says he was pretty wasted and can't remember if he had the flash on or not.

)
However after seeing all of these "paranormal" comments, I ran a google search on "Paranormal Orb", then after reading down the page a bit, "Spirit Orbs", try it if you find that stuff funny and want a laugh.
Still don't know what it is, also for clarification, I don't *technically* believe in an after life, however I don't honestly see how it'd be a piece of dust... guess it might always just be an unknown.
It could be a piece of dust too, I just don't see how it'd form that.