Canon EOS 70DN Basic Instruction Manual page 505

3
Appending Dust Delete DataN
Normally, the Self Cleaning Sensor Unit will eliminate most of the dust
that may be visible on captured images. However, in case visible dust
still remains, you can append the Dust Delete Data to the image for
erasing the dust spots later. The Dust Delete Data is used by Digital
Photo Professional (provided software, p.456) to erase the dust spots
automatically.
Preparation
Prepare a solid white object such as a sheet of paper.
Set the lens focal length to 50 mm or longer.
Set the lens focus mode switch to <MF> and set the focus to infinity
(u). If the lens has no distance scale, look at the front of the lens
and turn the focusing ring clockwise all the way.
Obtaining the Dust Delete Data
1
Select [Dust Delete Data].
Under the [z4] tab, select [Dust
Delete Data], then press <0>.
2
Select [OK].
Select [OK] and press <0>. After
the automatic self-cleaning of the
sensor is performed, a message will
appear. Although there will be a
shutter sound during the cleaning, no
picture is taken.
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