User's Manual

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ADOBE PHOTOSHOP CS2
User Guide
Camera Raw Workflow settings
Space Specifies the target color space profile. Generally, this should be set to the same value as your Photoshop RGB
working space. Keep in mind that the source profile for camera raw image files is usually the camera-native color
space. The profiles listed in the Space menu are built into the Camera Raw plug-in. If you want to use a color space
t
hat’s not listed in the Space menu, choose ProPhoto RGB, and then convert to the working space of your choice
when the file opens in Photoshop.
Depth Specifies whether the file opens as an 8- or 16-bits-per-channel image in Photoshop.
Size Specifiesthe pixelsizeatwhich to open theimage.The defaultisthe pixelsizeusedtophotographthe image.
Use the Size menu if you want to resample the image.
For square-pixel cameras, the Size menu is mostly a convenience for the user. However, choosing a smaller-than-
na
tive size is useful to speed processing when you are planning a smaller final image anyway. Picking a larger size is
similar to upsampling in Photoshop.
For non-square pixel cameras, the native size is the one that most closely preserves the total pixel count. Selecting a
different size minimizes the resampling Camera Raw needs to perform, resulting in slightly higher image quality. The
best quality size is marked with an asterisk (*) in the Size menu.
Note: Y
ou can always change the pixel size of the image after it opens in Photoshop.
Resolution Specifies the printing resolution at which the image will be printed or the amount of data in the image.
This setting does not affect the actual pixels (pixel size of the image). For example, a 2048 x 1536 pixel image, when
printed at 72 dpi, is approximately 28-1/2 x 21-1/4 inches. When printed at 300 dpi, the same image is approximately
6-3/4 x 5-1/8 inches. You can also use the Image Size command to adjust resolution in Photoshop.
Making tonal adjustments in Camera Raw
White balance and camera raw files
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 it if the white balance is not quite right.
TheAdjusttab in thePhotoshop Camera Rawdialogbox hasthree controls forcorrectingacolorcastinyourimage.
The
Calibrate tab also has a control for correcting a shadow color cast (a color cast that remains in the shadows even
after the white balance is adjusted).
White balance controls for camera raw files
White Balance Sets the color balance of the image to reflect the lighting conditions under which the photo was
taken. In some cases, choosing a white balance from the White Balance menu provides satisfactory results. In many
cases, you may want to customize the white balance using the Temperature and Tint adjustments.
Note: T
heCameraRaw plug-incan read thewhite balancesettingsofsomecameras.Leave WhiteBalance settoAsShot
to use the camera’s white balance settings. For cameras whose white balance settings are not recognized by the Camera
Rawplug-in,leaving WhiteBalance settoAsShotisthe same as choosing Auto:the Camera Rawplug-in readsthe image
data and automatically adjusts the white balance.
Temperature Fine-tunes the white balance to a custom color temperature. Set the color temperature using the
Kelvin color temperature scale. Move the slider to the left to correct a photo taken with a lower color temperature of