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<ul class="navigation"><li class="prev"><a accesskey="p" class="prev" href="WSF1B29B95-2419-4b50-A058-A5FE2D7E5E6F.html" title="Preview highlight and shadow clipping in Camera Raw"><img src="images/blank.gif" alt="Previous" width="17" height="17" /></a></li><li class="next"><a accesskey="n" class="next" href="WS8F52A240-D2DA-4a24-AF39-630548509498.html" title="Adjust tone in Camera Raw"><img src="images/blank.gif" alt="Next" width="17" height="17" /></a></li></ul><div class="hierarchy" id="hierarchy"><a href="WSB5C0E258-66DE-4089-9CB0-42F396E2B814.html">Camera Raw</a> /
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                <h1>
                    White balance controls in Camera Raw
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                <div><div class="section"><p>In simple terms, adjusting the white balance
is a matter of identifying what objects in the image should be neutral-colored
(white or gray) and then adjusting the colors in the image to make
those objects neutral-colored. A white or gray object in a scene
takes on the color cast by the ambient light or flash used to shoot
the picture. When you use the White Balance tool&#160;<img src="images/P_SampleGrayWhitBal_Lg_N.png" /> to
specify an object that should be white or gray, Camera Raw can determine
the color of the light in which the scene was shot and then adjust
for scene lighting automatically. </p>
<p>Color temperature (in
Kelvins) is used as a measure of scene lighting because natural
and incandescent light sources give off light in a predictable distribution according
to their temperature.</p>
<div class="para">A digital camera records the white balance
at the time of exposure as a metadata entry. The Camera Raw plug-in
reads this value and makes it the initial setting when you open
the file in the Camera Raw dialog box. This setting usually yields the
correct color temperature, or nearly so. You can adjust the white
balance if it is not right.<div class="note"><span class="notetitle">Note:  </span> Not all color casts are a result
of incorrect white balance. Use the DNG Profile Editor to correct
a color cast that remains after the white balance is adjusted. See <a href="WS438DC1E5-3DA4-49a2-A625-A87156D488A3.html">Adjust color rendering for your camera in Camera Raw</a>.</div>
</div>
<p>The
Basic tab in the Camera Raw dialog box has three controls for correcting
a color cast in an image:</p>
<dl><dt class="dlterm">White Balance</dt>
<dd>Camera Raw applies the white balance setting and changes
the Temperature and Tint properties in the Basic tab accordingly.
Use these controls to fine-tune the color balance. <dl><dt class="dlterm">As Shot </dt>
<dd>Uses the camera’s white balance settings, if they are available. </dd><p class="dlseparator"></p><dt class="dlterm">Auto </dt>
<dd>Calculates the white balance based on the image data. </dd><p class="dlseparator"></p></dl>
<p>Camera
raw and DNG files also have the following white balance settings: Daylight,
Cloudy, Shade, Tungsten, Fluorescent, and Flash. </p>
<div class="note"><span class="notetitle">Note:  </span>If Camera
Raw doesn’t recognize the white balance setting of a camera, choosing
As Shot is the same as choosing Auto.</div>
</dd><p class="dlseparator"></p><dt class="dlterm">Temperature</dt>
<dd>Sets the white balance to a custom color temperature. Decrease Temperature
to correct a photo taken with a lower color temperature of light;
the Camera Raw plug-in makes the image colors bluer to compensate
for the lower color temperature (yellowish) of the ambient light.
Conversely, increase Temperature to correct a photo taken with a
higher color temperature of light; the image colors become warmer
(yellowish) to compensate for the higher color temperature (bluish)
of the ambient light.<div class="note"><span class="notetitle">Note:  </span>The range and units for the Temperature
and Tint controls are different when you are adjusting a non-camera
raw image, such as a TIFF or JPEG image. For example, Camera Raw
provides a true-temperature adjustment slider for raw files from
2,000 Kelvin to 50,000 Kelvin. For JPEG or TIFF files, Camera Raw
attempts to approximate a different color temperature or white balance,
but because the original value was already used to alter the pixel
data in the file, Camera Raw does not provide the true Kelvin temperature
scale. In these instances, an approximate scale of -100 to 100 is
used in place of the temperature scale.</div>
<div class="fignone"><img alt="" id="sca_white_balance" src="images/sca_white_balance.png" /><div class="figdesc">Correcting the white balance</div><br /><dl><dt class="dlterm">A.</dt>
<dd>Moving the Temperature slider to the right corrects
a photo taken with a higher color temperature of light</dd><p class="dlseparator"></p><dt class="dlterm">B.</dt>
<dd>Moving
the Temperature slider to the left corrects a photo taken with a
lower color temperature of light</dd><p class="dlseparator"></p><dt class="dlterm">C.</dt>
<dd>Photo
after color temperature adjustment</dd><p class="dlseparator"></p></dl>
</div></dd><p class="dlseparator"></p><dt class="dlterm">Tint</dt>
<dd>Sets the white balance to compensate for a green or magenta
tint. Decrease Tint to add green to the image; increase Tint to
add magenta.<div class="tip"><img src="images/tip_help.png" />To adjust the white balance quickly,
select the White Balance tool&#160;<img src="images/P_SampleGrayWhitBal_Lg_N.png" />, and
then click an area in the preview image that should be a neutral
gray or white. The Temperature and Tint properties adjust to make
the selected color exactly neutral (if possible). If you’re clicking
whites, choose a highlight area that contains significant white
detail rather than a specular highlight. You can double-click the
White Balance tool to reset White Balance to As Shot.</div></dd><p class="dlseparator"></p></dl>
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