About ColorTemperature Information Transmission

When the flash fires, the colortemperature information is transmitted to
the EOS DIGITAL camera. This feature optimizesthe flash picture's
white balance. When the camera'swhite balance
is
setto <
m!i!l3
>or
<
~
>, it will workautomatically.
To
see ifthis feature works with your camera, see "White Balance"
under"Specifications"
in
yourcamera's instruction manual.

Aboutthe AF-Assist Beam

Underlow-light or low-contrast conditions, the built-in AF-assist beam
will be emitted automaticallyto make it easier to autofocus. The AF-
assist beam works with all EOS cameras. TheAF-assist beam
is
compatiblewith 28mm and longer lenses. The effective range is shown
below.
Position
Center
Periphery
EffectiveRange
0.6-
10m
/2.0-32.8 ft.
0.6- 5 m / 2.0 -16.4 ft.
49