Canon 550EX - Manual (Page 123)

Specifications
AF-Assist Beam Emission Preconditions
550EX/Camera Combination
550EX’S AF-Assist
Beam Emitted
Camera’s AF-Assist
Beam Emitted
EOS-3, EOS-1 N, EOS-1 N RS,
EOS 50 / 50 E / ELAN П / ELAN П E,
EOS 500 N / REBEL G, EOS IX, IX 7 / IX Lite
EOS 1000 N/REBEL П,
1000 FN/REBEL SI,
EOS 1000/REBEL,
1000 F/REBELS,
EOS 100/ELAN, EOS 700,
EOS RT, EOS-1, EOS 630 / 600,
EOS 850, EOS 750, EOS 620,
EOS 650
О -
EOS 500 / REBEL XS / REBEL X,
EOS 5 / A2 / A2 E,
EOS 10/10S,
EOS 5000 / 888
— О
Camera’s Flash-Related Exposure Warnings
Mode Warning Indication Description Remarks
Aperture-priority AE
Max, sync speed
blinks,
The background will
be overexposed
Only the flash
exposure setting for
the subject is correct.
Changing the aperture
may stop the shutter
speed from blinking.
Shutter speed-priority
AE
Minimum aperture
setting blinks
The background will
be overexposed Only the flash
exposure setting for
the subject is correct.
Maximum aperture
setting blinks.
The background will
be underexposed,
Program AE
Minimum aperture
setting blinks. The subject is too
bright.
Attach a neutral-
density filter to the lens
to reduce the amount
of light received by the
camera
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