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Camera Raw Workflow Controls

At the bottom of the dialog box, four controls let you set output parameters for the converted image. See Figure 3-13.

03fig13.jpg

Figure 3-13 Camera Raw output controls

The settings made using these controls apply to the current image, or to all the images being converted in a batch process. Unlike the settings made with the image-specific controls, these settings aren't saved with images. This is an advantage, because you can set the workflow controls to produce large files in a large-gamut color space for print or final delivery, or change them to produce small files in sRGB for review on the Web or email.

Space

lets you choose the destination color space for the conversion from one of four preset working spaces: Adobe RGB (1998), Colormatch RGB, ProPhoto RGB, or sRGB IEC61966-1 (the lattermost being the "standard" flavor of the sRGB standard). See the sidebar "Camera Raw and Color" in Chapter 2, How Camera Raw Works, for details on how Camera Raw handles the color management aspect of the conversion.

Depth

lets you choose whether to convert to an 8-bit/channel image or a 16-bit/channel one. A 16-bit/channel file requires twice as much storage space on disk as an 8-bit/channel one, but it provides 128 times as many tonal steps between black and white, so it offers much more editing headroom. See the sidebar "The High-Bit Advantage," later in this chapter, for more on the pros and cons of 8-bit/channel and 16-bit/channel modes.

Size

lets you resample the image on the fly, or convert it at the native camera resolution. The actual sizes offered depend on the camera from which the image came, but they correspond to the native resolution; downsampling to 66 percent or to 50 percent; and upsampling to 133 percent, 166 percent, and 200 percent. For a discussion on the pros and cons of resampling in Camera Raw versus resampling in Photoshop, see the sidebar "When to Resample," later in this chapter.

Resolution

lets you specify a resolution for the converted image, in pixels per inch or pixels by centimeter, giving you the option to save yourself a trip to the Image Size dialog box once the image is converted. Unlike the Size control, it has no effect on the number of pixels in the converted image—it just specifies a default resolution for the image. You can always override it later using Photoshop's Image Size command.

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