Canon PowerShot S30, User Manual

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Converting RAW Format Images
The RAW image file format records image data as captured by the camera’s image
sensor without further processing by the camera. Although the data is compressed
when recorded, the original data can be completely restored without any loss of
quality. Moreover, the RAW format is extremely compact, creating files approximately
one-quarter the size* of uncompressed files (RGB TIFF). However, RAW images
cannot be opened by standard image editing programs unless they are first
converted.
Conversion involves generating high-quality RGB signals from the RAW format files. If
you use ZoomBrowser EX, RAW Image Converter, or the TWAIN Driver, you can adjust
the attributes of the original data before conversion to retain the degree of image
quality appropriate to your purposes. The result is high-quality images. In contrast,
image data recorded in the RGB TIFF and other standard uncompressed file formats is
irrevocably processed in the camera and again by an application program when you
change the file attributes, which reduces the image quality.
* As measured by standard Canon test conditions.
• Please see the Camera User Guide to learn how to shoot RAW images.
• ZoomBrowser EX, RAW Image Converter or the TWAIN Driver (for
Windows 98 / 2000) is required to convert or download images to the
computer.
Converting RAW Images with ZoomBrowser EX
You can convert RAW images with ZoomBrowser EX. Unless you specify a format,
images are saved in a new file with the same name (except for the extension) in the
TIFF (8 bit/channel) format. To learn how to change the format, read “How to
Change the Image Format” (p. 46).
Converting RAW Images without Adjusting the Quality
1.
Select a RAW image.
• Select a RAW image from the Browser Display Area of ZoomBrowser EX.
2.
Click the [File] menu and select [Convert RAW Image(s)].
• The image will be converted and saved as a new file in the same folder as the
original RAW image.