Have you ever been disappointed in your video because it came out real blue or real orange? Chances are high you had a problem with one of two things or both:
- The “Color Temperature” of your lighting.
- An adjustment on your camera known as “White Balancing.”
Two things a bit on the technical side when it comes to making video are color temperature and white balancing. They are related. This post tells you everything you need to know from a practical level about these terms and how they affect the way you shoot video.
White balancing is an adjustment you make to the camera that tells it what kind of light you are recording in so that the camera records video the correct color.
(Small, automatic cameras always have automatic white balancing so you do not need to worry about it, but larger video cameras have manual white balance control which gives you better quality. )
WHY DO YOU NEED TO WHITE BALANCE?
Different types of light are different colors. The camera needs to adjust itself in order to shoot proper color. This might seem strange, because light generally looks white to us humans, regardless of its source. We do not see sunlight as blue, florescent light as green, or incandescent as orange, but they are.
The actual color temperature of the sun, and therefore the color of its light, changes significantly throughout the day.
Cameras see the light as it is truly colored but our brains and eyes sort them all out as white or else we’d feel like we were on a permanent LSD trip. (Wow man, everything is soooo colorful.)
Color temperature is the technical term for measuring the color of light. The Kelvin Temperature scale is used. The term “temperature” is a touch misleading because it is not referring to the degree of hot or cold, but rather the color of the light. The higher the number the “colder,” or bluer, the light is. The lower the number, the “warmer” or more orange the light.
Standard sunlight is about 5,400 degrees Kelvin. Shadowy sunlight is “colder,” about 7,400 degrees. Tungsten halogen TV lights are orange and come in at 3200 degrees kelvin. Compact florescent is blue, similar to sunlight, but standard florescent light found in schools and offices is green. The kind of lights often used in street lights, high pressure sodium, are extremely orange and actually look orange to the eye.
You do not really have to know these exact values to adjust your camera. Most cameras white balance by pointing them at a white card that is reflecting the light being shot under. Then a button is pushed and the camera reads the white and adjusts all other colors relative to it.
One advanced tip is to white balance on a card with a slight blue tint and you will get a nice warm orange. Not orange enough to look distorted, just orange enough to look inviting.
You can do the reverse by balancing on a slightly orange card. This gives you a blue tint, which might just be what you need to make that Christmas scene shot in July look cold.
To play it safe and get the truest color, it is best to shoot in one type of light. Mixtures can throw a camera off. For example, if you shoot inside under incandescent light your windows will look overly blue. Sometimes that can actually look nice, but often it looks horrible.
If you go outside to shoot without changing your white balance setting from taping indoors, your video is likely to be very blue.
If your camera has a manual white balance, use it every single time you change light. Also change it as the day lingers, because sunlight in the evening is much bluer than sunlight at noon.
One great feature to look for in more advanced video cameras is the ability to set white balance presets. They can help you change your white balance quickly, without having to go through the typical routine with the white card.
I hope this information helps you make better videos!
Lorraine Grula
Internet Video Gal
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1 Comment(s)
By Song on | Reply
Very interesting article. I learned a lot. Thank you.