Artificial light appears in a variety of forms - tungsten and fluorescent being two of the most widely used. Each type of lighting produces a different colour temperature that our brain compensates for to make everything appear as though it's neutral light.
When I first started in the hobby of photography, I took lots of photographs with a small 110 compact camera. Unfortunately my indoor photographs often had a yellow or bluish tint. When I upgraded to a film SLR camera, I often used a filter when taking indoor photographs.
White Balance Preset Modes
Automatic white balance, indicated by the letters AWB, gives your camera permission to decide what the white balance should be in a given situation. Typically it finds the brightest portion of your frame and sets that as white.
By George Lepp
Q) I've heard conflicting recommendations on where to set the white balance on my digital camera. Some sources advise the use of automatic white balance; others say to use a different white-balance setting for each specific light source. What do you think?
White Balance as a Creative Tool
All light as we see it has a color, even though we may think it is all just white. Compare, for instance, the color of the light emitted from an incandescent light bulb versus a fluorescent tube.
Normally our eyes compensate for lighting conditions with different color temperatures. A digital camera needs to find a reference point which represents white. It will then calculate all the other colors based on this white point.
~ and Daylight
Photographs taken under different light source seem to have a tint of certain colour cast.
~ by Russ Burden
Rating: 9 / 10
Use Camera RAW ~ to Create Moods ...
Written by: Steve Guymon
In order to get the most natural coloration in an image, modern digital cameras allow you to choose a setting which matches the color cast of the main light source illuminating the subject.
~ - Are you RGB Savvy?
by Moose Peterson, exclusive to nikondigital.org ...
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~ is an adjustment in electronic and film imaging that corrects for the colour balance of the lighting - so that white objects appear white, rather than coloured (for example) yellow when lit by tungsten filament lights, or excessively blue under sunlight.
~ Settings in the Camera
Here's chart showing the different ~ settings on a typical SLR camera. Your camera may have more settings than this or less or even slightly different ones.
With auto ~, the camera attempts to determine the color temperature of the light and automatically adjust for that color temperature. Many people just leave the camera set to auto ~ all the time. This is certainly the easiest option.
~ is an automatic setting on most digital cameras to account for these adjustments in light sources. Cameras come with a variety of pre-programmed settings. The camera recognizes that if the setting is for fluorescent bulbs, then "white" is actually going to look "purple.
~ refers to the color tint of a photograph. Film and digital sensors are calibrated for certain types of light. Whenever an image is shot under different light conditions (or color temperature), white does not appear white.
see also ~, How to Change the ~ of an Existing Image and The Expodisc.
Note: The last row of each shows the WB setting in degrees Kelvin, or K. Tungsten is the same as 3,200 K, Daylight is the same as 5,400 K, Cloudy is about 6,000 K and Shade is about 7,500K.
Techniques Glossary ~
Artificial light appears in a variety of forms - tungsten and fluorescent being two of the most widely used.
Every time a digital camera takes a picture
it needs to establish the white point as the basis from which the percentage of each color is derived. Because this is affected by the quality of light in a scene, most cameras offer adjustable ~ settings.
When you take a picture your camera's sensor attempts to define what is white in the photograph so that it can determine the correct color balance.
Since the days of the Kodak Brownie cameras, manufacturers have tried to automate everything for us. Hence, today's digital cameras also all sport an Auto ~ (AWB) function. Depending on the camera brand, some AWB works better than others.
Preset ~ on Nikon Digital SLR Cameras
I've written about ~ before, but a question that comes up frequently is just how one goes about using the preset ~ feature found on many current digital cameras.
Manual ~ Adjustments
In most cases you can get a pretty accurate result using the above preset ~ modes - but some digital cameras (most DSLRs and higher end point and shoots) allow for manual ~ adjustments also.
CUSTOM ~: CHOOSING A NEUTRAL REFERENCE
A neutral reference is often used for color-critical projects, or for situations where one anticipates auto ~ will encounter problems.
Custom ~: There may be times when there is nothing in a scene that can be clearly identified as
white (or neutral). This may prevent the cameras' image sensor from locating a "Point of Reference", thereby ...
What is ~?
How to use your digital SLR camera ~ settings - auto, custom, preset, daylight, tungsten, fluorescent, flash, cloudy and shade.
Setting ~ for a Set of Photos in Adobe Lightroom
1. Open up your set of oddly tinted images in Lightroom. You're going to use the ~ Selector tool to select one of the gray blocks on the gray card:
The ~ Selector tool looks like a little eyedropper.
Click to explore how the ~ setting affects the way images are captured.
Fluorescent light has a variety of color temperatures depending on its type. Some bulbs are daylight balanced.
Al images by author
In previous article, I talked about fundamental parts of creating a photograph and how to use them according to our needs. I purposely omitted to mention ~ as there's a lot to explain and it deserves it's own article.
~ can be really confusing at first. Remember how film would turn out greenish for a picture under fluorescent light, or if the area was just lit by incandescent bulbs how the picture would look yellow?
The Polaroid ~ Lens Cap is great for use with digital cameras. Just place the ~ Lens Cap, point your camera at a subject area, and the incoming light is diffused to create an average ~ for a particular scene.
Beyond its primary function as a ~ tool, the precision calibration and uniformity of the ExpoDisc 2.0 means that it can also be used to meter for an 18% incident exposure and to dust map the image sensor. Made in the USA, every ExpoDisc 2.
Take ~, for example. ~ is the set with the first two controls in the Basic panel, and it's generally the first thing I'll approach when correcting a photo (Figure 1).
~ - A digital camera analyzes a scene using its ~ mode to determine areas that should be recorded as pure white.
~ reveals an interesting difference between a camera and a human eye: A human eye has a human brain attached. When you look at a white object, your brain is actually interpreting the lighting cues around you and calculating that the object is white on the fly.
~ what is it, how to use it?
~ settings are something new to the digital photography era, but color temperature is not. Today we're going to explore a few things about ~, color temperature and how to adjust the settings to your advantage. Including: ...
~ is the process of calibrating a digital camera to the appropriate color temperature of the dominant light source in a given scene.
Wide-Angle Lens ...
~ and skin tone
What I really like about iPhoto is that it has a ~ tool that lets you adjust the colors for skin tones. To access it, tap the button next to the Settings button in the lower right. It will likely look like a lens and say WB.
There's a wide variety of things that can effect the color of the light thrown by your headlights. The amount of dirt on the headlights, the kind of bulb that's installed, and even the moisture in the air can affect the final look, so bringing a grey card is probably a good idea.
~: How to get it right every time
Twenty years ago, when digital camera was just being conceived in the minds of engineers, and film was the popular medium of photography, concept of ~ didn't exist yet.
Because so many waterfalls are white, they easily pick up the color of the light striking them. This is most noticeable when a waterfall in the shade illuminated by the blue sky appears a distinct blue in the photo.
~ explained: how cameras correct the color of different types of light
The ~ setting you choose will change the colour balance in your pictures, making it warmer or cooler depending on how the sort of light you're shooting in affects things.
~ and Other Settings
~: This new term sounds complicated however, it’s really quite simple. The auto setting works exceptionally well most of the time. Different light sources have different colours, and light quality is measured as a colour temperature.
Camera feature to compensate automatically for light sources of different color temperatures (e.g. sunlight, cloudy, fluorescent, and incandescent).
Wet Connector ...
~ - A function on the digital camera (whether manual or to compensate for different colors of light being emitted by different light sources. It refers to the relative intensity of colors in your image.
Depending on the lighting conditions, a pure white in a photograph may appear slightly yellow or blue. The ~ control settings on a "Digital Camera" will help to eliminate unwanted colour bias by actually controlling the camera's colour temperature response. C.C.
In ACR, the first step is ~ with the dropper. Most images from the events I photograph, unless flash was used, require white balancing. The default is almost never useable and the settings from the dropper are usually fairly extreme. (Editing Example 2 and 2.
~. ~ has to do with color temperature although for this description I'll keep the photography definitions simple. If you have a digital camera it can automatically set the ~ for you.
With film you can buy "daylight balanced film" for shooting outdoors or "tungsten balanced film" for shooting indoors under normal domestic lighting (not fluorescents!). If you use daylight film under tungsten light the images will be very yellow.
Adjusts the brightest part of a scene so it appears white. How a digital camera records color is affected by the source of light.
~ refers to the correctness of color in a photographic scene. The ~ feature in most digital cameras ensures that color appears correct regardless of the lighting conditions.
~ - Compensates for different types of light that can create a dominant hue of color that needs to be corrected to produce more natural results. Typical settings include sunny, cloudy, tungsten, and fluorescent. Auto is normally the default setting.
~ - A function on the camera to compensate for different colors of light being emitted by different light sources.
Glossary Of Terms Associated With Digital Photography
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~: Auto ~.
ISO 200 (Base ISO). Read more about choosing ISO
Light metering ...
Light always appears white to the naked eye. In fact it takes different colours depending on the source; from household light bulbs to natural daylight. So a photo taken indoors by the light of a standard ceiling bulb may come out with a slight yellowish cast.
~ With RAW shooting, ~ and other parameters can be set later on your computer
Image quality and size
This one's also easy: set the quality to the best possible and the size to the largest possible and you can't go far wrong.
Adjusts colors depending on the source of light (sunlight, tungsten, fluorescent, etc.)
Auto Lighting Optimizer ...
~. An automatic or manual control that adjusts the brightest part of the scene so it looks white.
Wide-angle lens. See Short-focal-length lens.
Zoom lens. A lens that lets you change focal lengths on the fly.
~ Digital cameras need a reference point for white in order to render all the other colours of the spectrum naturally. This is called the ~.
~ - Digital cameras usually enable the user to adjust for ambient light conditions using a ~ feature. Most cameras have an automatic ~ mode for daylight, cloudy, tungsten or fluorescent lighting.
A system used to describe the color temperature of the light source used in the making of a color photograph.
The normal aim is to adjust the ~ of an image to 'neutralise' it; to make blacks, greys and whites appear neutral.
~-A function on the camera that compensates for different colors of light being emitted by different light sources.
wide-angle lens-A lens that has a shorter focal length and a wider field of view (includes more subject area) than a normal lens.
- X - ...
The camera's ability to correct color and/or tint when shooting under different lighting conditions including daylight, indoor, fluorescent lighting as well as electronic flash.
xD Cards ...
~. Refers to the adjustment of the brightness of the red, green and blue components, so that the brightest object in the image appears white. See also "AWB"
Wide angle. The focal length that gives you the widest angle of view. I.e. 10mm, 16mm, 24mm etc.
In digital photography, the ~ establishes the color balance (and neutrality) of the image in relationship to color temperature of lighting conditions.
~: The colour of light varies enormously throughout the cycle of the day, from very cool (e.g. the blue cast of shade), to "daylight" (e.g. at noon), to very warm (e.g. the fiery reds of a dramatic sunset).
An adjustment made by a capture device to correct for any colour bias due to the colour temperature of the light source.
wide angle lens ...
~. The adjustment of a digital camera to the color temperature of the light source. Interior illumination is relatively red; outdoor light is relatively blue. Digital cameras often set correct ~ automatically or let you do it through menus.
The process of adjusting the video camera's red, blue, and green Gain controls in order to balance the color of prevailing sources (sunlight, sky light, fluorescent, etc.).
The perceived colour of an object is affected by the colour of the lighting under which it is viewed. The human brain is able to detect and compensate for such changes in perceived colour.
~ and Color Temperature in Digital Photography
By Jim Altengarten
How Your Camera Sees the World: Metering
Learn how your camera "sees" and learn photo metering - center-weighted, spot, partial, and multi-segmented metering.
By Jim Altengarten ...
This photograph isn't too bad to begin with, but it definitely needs some tweaking in terms of clarity and exposure, and could be warmed up a little bit. No matter what the state of your image, you should always start by correcting the ~.
~ - Infra-Red hues are more than red (well duh.), they are so red that their ~ is off the scale of the automatic and preset WB in most cameras.
The camera automatically sets ~ to match the true color of the subject.
The camera focuses automatically.
Photography (Basic) - Introduction to photography and other graphic techniques
Making Pans ...
The deeper you go underwater the moreyou lose the colour red and photos will quickly take on a flat blue tone. This can be fixed using custom ~.
Try to capture a custom ~ from a patch of brightly lit grass (with the infrared filter attached if this is what you are using). You can use this as the basis for your infrared images.
Get the ~ card (WBC) and color palette. The ~ Card (WBC) will have several shades of white as well as a black & white checker pattern so you can adjust your camera's settings to the lighting, as well as adjust proper focus settings.
~ is another area of control that the digital camera has over film. I leave my camera set on the "cloudy" day setting to warm the scene and offset some of the cyan bias common to underwater photos. I also capture my images in the RAW format to preserve all of the information possible.
Function within the camera used to achieve white light in the image, is usually done automatically but can be manually adjusted to tell the camera what lighting situation you are in; lighting situations are categorized by color temperature in degrees Kelvin.
Common Color temperatures: ...
~ settings offer Auto, Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash and Custom, followed by the option to manually enter a colour temperature from 2500 to 10000 Kelvin. ~ correction and bracketing is also available.
On digital cameras, electronic compensation for the color temperature associated with a given set of lighting conditions, ensuring that white light is registered as such on the imaging chip and therefore that the colors in the frame will appear natural.
The Global adjustment of the intesity of colours. Also known as Colour Balance. The adjustment of the colour temperature of an image to portray the image in a natural manner. Often a Gray (Grey) Card can be used to measure the correct temperature of the environment.
The ~ setting is one of the most underused settings in digital cameras - I'd encourage you to learn more about it to improve your photography. Usually, camera manuals may document how to use the setting, but don't explain in what circumstance the setting should be changed.
Wrong ~ setting. Didn't realize the ~ mode was set to fluorescent. Check camera settings.
Barrel distortion, which gives the appearance that buildings lean inward, was caused by use of widest end of zoom lens. Zooming in will minimize or eliminate the effect.
4) For ~, I use auto as it seems to give the best look. Incandescent, florescent and cloudy settings all seem to just tint the photo which is not the look I am going for.
Automatic ~ compensation.
The colour temperature of a flash tube can vary subtly depending on its precise voltage.
All digital cameras have automatic ~. This allows a camera to capture images illuminated, for example, with yellow incandescent lighting without producing yellow pictures by eliminating yellow from the image.
I also shot this image using daylight ~ and no 80a filter. This combination made it difficult to judge proper exposure. The exposure that looked right was actually overexposed by 1 stop and lost detail in the red channel.
~ - most cameras are already in ~; if done manually, a white paper is held in front of the lens ...
Underexposure: The muddy, dark areas of a photograph due to too little light reaching the film.
~: A function on the camera that compensates for different colors of light being emitted by different light sources.
Related Article: ~ ...
Digital Photography Glossary: W
~ - A function on the camera to compensate for different colors of light being emitted by different light sources.
How to Obtain a ~ on the Canon EOS Cameras (Video)
A digital camera's ~ setting compensates for the different colors of various light sources—fluorescent, which has a \"green\" cast, or a cooler-than-daylight light balance; incandescent, which has a \"yellow\" or a warmer-than-daylight ~; and daylight— ...
On the left, a cool ~ leaves the snow looking too blue. Second, a cool, but more neutral white conveys the coldness of the scene. Third, a neutral white often looks dull and unrealistic, but serves to increase color contrast in a scene.
One of the most useful options is the ~ adjustment. With this, you will never have to worry about the ~ setting in the field (remember, RAW only includes brightness levels). You can easily adjust the ~ in the Comfort of your home.
Minor color temperature (~) issues are easily fixed during scanning or post processing of digital camera images. I'm not advocating using daylight balanced film if you are shooting under tungsten lights and the same approach applies to digital camera lighting.
When shooting pictures indoors using artificial light, you will have to make a decision about which ~ setting to use.
Digital Photography Tip - ~ - Don't use the default auto-white-balance setting in every situation. Auto-~ can render your images a dull gray on cloudy days.
See also: What is the meaning of Balance, Camera, Photograph, Light, Image?