we will start off by talking about some basic things to look for when you are looking at a picture with an orb/globule in it. There are 4 possible causes for an orb to appear in your image and they are as follows:
1. Refraction of a dust particle.
Oftentimes the tiniest particle of dust will reflect the flash of your camera or the infrared light of a digital camera producing a stunning orb that most investigators would drool over. Now, the most popular excuse for claiming that it is not dust is; "But, all the other images had no orbs in it. Only this one". Well, that is because it was only one particle of dust and it is most likely still there in the other photos but it is just not at the right position or angle to reflect the light of the camera flash again.
So, the question remains, how do we know when it is dust and when it is a true orb? Dust tends to refract in a perfect circle with little "noise" in it and no border. By this we mean that the orb does not look like a cell under a microscope. Its make-up is pretty much a solid color without a defined border to it.
2. Refraction of moisture.
This is a little bit easier to spot. An orb caused by moisture will tend to have angular sides to it and its make-up tends to fade from solid to transparent. Once again it has no border. And like the dust particle, moisture can appear in one photo and not in another that was taken immediately afterwards.
The larger the moisture the less angular it will look. A picture of rain drops will yield very little angularity at all. In fact it will produce small solid looking object that can easily be mistaken for orbs. A fine mist will produce angular sides.
3. Reflection of an object.
Ok, I must say that this is the most common mistake made and usually the easiest to spot. If you have an image with multiple orbs in it and one is more intense than the other, then, chances are, you have a reflection.
Here is why. When light reflects off of an object it produces many circular "flares" in an image. These vary in intensity and are usually located within a straight line emanating from the source, which is usually some small object in the background that is overlooked by the investigator when reviewing the image. The objects can range from a small ring on a nightstand to the varnish on a table or door.
If you have Adobe PhotoShop, you can take an image like this, run its gamma to near max and you will see that the orb will have the same gamma signature as the object from which they are emanating.
4. True paranormal energy.
Now we're talking. Once you have eliminated the above possibilities, it is time to take a good, long, close look at the orb itself. What you are looking for in "orb" activity is a solid object that emits its own light. It will usually show up on film looking like someone just threw a ping-pong ball across the screen. If the orb has signs of movement, such as a blurred trail behind it, then you've got some rather solid evidence.
The other characteristic of orb activity that we consider is the coloration of the orb. True orbs are colored in the "cool" end of the spectrum, namely white, blue, or green. Any orb activity that shows up as red, orange, or yellow, it typical of dust, light refraction, or processing error.
But remember, and orb is just a collection of energy not the manifestation of a ghost. While orbs are usually present during paranormal activity, you can have orbs show up without paranormal activity.
"Orbs" are a natural phenomenon and can be witnessed with little difficulty in parts of up-state New York as well as other regions around the globe.
So, next time you are flipping through your case pics and find a big white orb staring you down, take the time to really analyze the picture, find the orb's true origins and then present it to the world and be confident that your credibility will remain intact.