Orbs Galore

At the Ghost Mysteries and it's affilliated websites listed on my sidebar, I've noticed alot of posted orb pictures. It's a strange, more common recently phenomenon, which has occurred more often with the use of digital photography.
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Each orb tends to be of different size, brightness, n internal shape features. Some appear like faces in a bubble, almost as if someone is peering at us through a portal-window, or as if there are entities floating among us in small circles of energy.
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The cause of this usually, but not exclusively digi-pic occurrence is up for a physics debate. Some choose to believe it's purely a spiritual cause, while some could be formed due to reflections of refracted light from objects being photographed, dirt on the lens, or added in photoshop.
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Location seems key in the discovery of these in pics. They occur more in some places, than others, n near certain individuals more than others, I've noticed.
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My new digi-cam has given me many unexpected surprizes. This past week my big Sis n Niece were visiting MA from FL, n I had occassion to take alot more indoor, flash-photography shots. You guessed it, I've discovered many orbs in my pics! Some are faint, some are bright, some have faces, some are large, n some are tiny.

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In one of the group-shots taken, I can count five in one pic alone! Two locations, a bar in the city, n a house nearby have been prolific, with orbs appearing in almost every shot. So I went around in my apt as an experiment a few nights ago, n found a few more.

I've begun an orb collection of my own this past week. I wonder if they'd appear different under 8-mgpxl closer scrutiny? I'd like to hear from other folks if they've been getting orbs in their digi-pics as a common experience also.
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Have you found these in yours?