This is a shot of an orb we captured in the back yard testing out my EMF meter.
I got a strong reading and yelled for the hubby to take a shot.
I agree that many orbs are dust on the lens or glare or whatever.
But this one gave off an EMF and we could not see it in real time. Only in the photos.
I have also cropped it way down in the next photo.
It almost looks like a heart