BHPI Josh wrote: To me it looks like dust or moisture.
I'm adding more to this because I feel like I should. Someone on here called me out on this and I want to clarify. Why do I think it's dust or moisture? Simply because I've seen a very similar effect created by non-paranormal events. Seriously people if us in BHPI can recreate something under normal circumstances, we can't call it paranormal. I know there's people who don't want to hear opinions that are different then theirs, but c'mon here, I'm not discrediting anyone. I blatantly stated this as an OPINION. I'm not saying it's a fact.
To be sure, we are entitled to our own opinions; but we are not entitled to our own facts. Having said that, as a photographer, I can say that I've seen orbs where most can be explained and I still maintain that 99% are explainable with 1% or less non explainable.
I still maintain that if we shoot a scene with OFF CAMERA FLASH, that will be a better set up as we should always try to take away the "orb factor". Why take away the "orb factor"? We don't need it for one; secondly, if there is something paranormal in the scene, it will manifest if it wants to as it doesn't need to come through the use of a cheap digital camera.
I've even noticed a difference [may be nothing] in my work camera that I use; a Canon P & S where I normally use F 2.8 aperture. I almost never get orbs in my shots. Methinks it may have something to do with a wider aperture, but I could be wrong. Also, I increase my ISO speed, but don't know if it's a factor or not.