Canon EOS40D instruction manual About the Dust Delete Data, 130

3Appending Dust Delete DataN

3 Photograph a solid-white object. At a distance of 20 - 30 cm / 0.7 - 1.0 feet, fill the viewfinder with a patternless, solid-white object and take a picture.

XThe picture will be taken in the aperture-priority AE mode with an aperture of f/22.

Since the image will not be saved, the data can still be obtained even if there is no CF card in the camera.

XWhen the picture is taken, the data will be obtained. When the data is obtained, a message will appear.

Select [OK], and the menu will reappear.

If the data was not obtained successfully, a message to that effect will appear. Follow the “Preparation” procedure on the preceding page, then select [OK]. Take the picture again.

About the Dust Delete Data

After the Dust Delete Data is obtained, it is appended to all the JPEG, RAW, and sRAW images captured thereafter. Before an important shoot, you should update the Dust Delete Data by obtaining it again. For erasing dust spots automatically with the bundled software, see the PDF Software Instruction Manual on the CD-ROM.

The Dust Delete Data appended to the image is so small that it hardly affects the image file size.

Be sure to use a solid-white object such as a white piece of paper. If the paper has any pattern or design, it may be recognized as dust data and affect the accuracy of the dust deletion with the software.

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