I use digital cameras. These digital pictures have numerous blur " light balls " on the pic. What are they

From how you're describing this, SOME people would call these 'orbs'. If you look up Lemp Mansion (which is supposively one of the most haunted places in the world) Pictures from St. Louis, MO, you might seem simular 'light balls' on your pictures.

However, I am more believing of the idea that your camera just doesn't do a perfect job when it comes to your flash bulb or lens (dirt, worn out, dust, etc).

=]

possibly spirit figures from the beyond

if u believe in ghosts they could be orbs

they are maybe just bad lighting or reflection or they could be ORBS which are considered ghost by some people

Yeah, Sylvia Brown calls them orbs, or something.. they are ghosts or angels supposedly

You more than likely have something on your lens like dust or water spots. Try cleaning the lens.

Dust, dirt, or pit marks on the lens.

yo there ghosts.

possibly circles of confusion where light is hitting the lens; do your light balls resemble apertures? if so that's it

It's called flare, caused by off-angle lighting hitting the front of your unshaded lens. This is why you see the pros using long extensions (hoods) on their lenses - to shade the lens from stray light that would cause flare.

http://www.popphoto.com/howto/2859/pictu...

Canon owner manuals also say that it can also be "light from the flash reflecting off of dust or insects in the air. This is particularly noticeable when shooting using the wide angle."

See also: http://www.moonslipper.com/ghostlightsan...

I had the same problem with my old Fiji camera.

One friend told me that it was the spirits of the dead that we can't see, but the camera picks up. I know differently.

The spots that you see are tiny patricles of dust that are floating in the air just in front of the camera lens that are being illuminated by the camera flash.

Check it out -
Take a picture in dim light where the air is dusty, a barn might be a good place... use the flash. You'll see white spots.

Next take the same picture, but turn the flash off. No spots!

Also try taking a picture in a dusty place that is brightly lit so there is no need for a flash. You won't see the white spots.

The reason the spots appear to be round is because the camera is focused beyond the dust particles, so they look like blurry dots. The flash overexposes the dust, making them white.

I tried explaining this to my friend, but she prefers the "spirit" theory... and that I can't explain.

If the light balls occur only when using flash, it's the flash reflecting off dust and other particles floating in the air.

You may be able to see them even in daylight if you're using fill flash.

This is very common and there's not much you can do about it.

If you're getting this problem when not using flash, it could indeed be lens flare or some unexplained phenomenon.