Canon 540EZ User Manual

Page 24

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Confirming the background exposure with the EOS-1 N and EOS-1:

The main subject wiii be property

exposed by the fiash according to

the TTL program based on this
aperture vaiue.

Exposure warnings are given for the background exposure. For the meanings

of the warnings, refer to your camera's instruction book.
The fastest fiash-synchronizing shutter speed (X-sync speed) differs depend

ing on the camera model Refer to the "X-sync Shutter Speeds for EOS

Cameras” chart on page 31.

Even if you set a shutter speed that is faster than the camera’s X-sync speed,

the camera wiii automaticaliy reduce the shutter speed to the X-sync speed