User's Manual

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ADOBE PHOTOSHOP CS2
User Guide
From the Camera Raw dialog box, you can save the processed files in Digital Negative (DNG), JPEG, TIFF, or
Photoshop (PSD) formats. If you open the file in Photoshop, you can save the camera raw image in Photoshop-
compatible formats such as PSD, JPEG, Large Document Format (PSB), TIFF, Cineon, Photoshop Raw, PNG, or
Portable Bit Map. For more information on the Digital Negative format, see “Adobe Digital Negative format (DNG)”
on page 679 or visit the adobe.com website.
Note: T
he Camera Raw dialog box is automatically suppressed when you use a batch of camera raw files for a web photo
gallery, picture package, or contact sheet, or when you use the Place command with camera raw files.
You can save the camera raw settings for a specific camera or a specific lighting condition and reuse them to process
a
nother camera raw image file or a batch of files.
See also
“Camera Raw settings” on page 222
“To process camera raw files in Camera Raw” on page 210
“To open camera raw images in Photoshop” on page 210
“Automating processing of camera raw images” on page 226
“To save camera raw images in Camera Raw” on page 221
Camera raw and Photoshop Raw files
Although Photoshop can open and edit a camera raw image file, it cannot save an image in camera raw format. A
Photoshop Raw format is available in Photoshop, but it’s not the same format used in camera raw image files. A
camera raw image file contains the unprocessed bits from the camera’s CCD or CMOS. This data needs significant
processing of the type performed by the Camera Raw plug-in. The Photoshop Raw format (.raw) is a flexible file
format for transferring images between applications and computer platforms.
Caches for camera raw files in Bridge
When you view camera raw files in Adobe Bridge, the thumbnails and previews use either the camera raw default
settings or your adjusted settings. The cache in Bridge and the Camera Raw cache store data for the file thumbnails,
metadata, and file information. Caching this data shortens the loading time when you return to a previously viewed
folder.
The Camera Raw cache speeds loading of the Camera Raw dialog box and the recalculation of previews in Bridge
a
fter changes are made to the Camera Raw settings. The Camera Raw cache holds preparsed raw image data for the
most recently accessed camera raw files.
The cache in Bridge stores the calculated thumbnails, previews, and metadata for all kinds of images.
Becausethe caches canbecomeverylarge,you maywanttopurge thecache or limit itssize. Youcan also purgeand
r
egenerate the cache if you suspect that it is corrupted or old. Purging the cache deletes thumbnail information and
metadata added since the camera raw file was opened in Bridge.
Note: TheCameraRaw cacheholds data forabout 200 images foreachgigabyteofdiskstorage allocatedtoit. By default,
the Camera Raw cache is set to a maximum size of 1 GB. You can increase its limit in the Camera Raw Preferences.