Using Flash - Canon EOS 1 Instructions Manual

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V Using Flash
Attaching an EOS dedicated speedlite to the
camera's accessory shoe enables advanced
flash photography with the operational sim-
plicity of normal AE shooting. In addition to
overall exposure compensation, independent
compensation of just the flash exposure is
possible from the camera side.
Operation of the built-in three-zone
(center, right, left) automatic flash
sensor corresponds to the five focus-
ing points, increasing flash exposure
precision by automatically weighting
the exposure to the center when aut-
ofocusing at the center point, or to
the left or right when autofocusing at
one of the side points.