Canon EOS Rebel Ti Instructions Manual page 50

tu.,nn
the Built-in Flash
In a Basic Zone Mode
In a Basic Zone mode (except .b
t, .( t and <El>), the built-in
flash will pop up and fire automatically in low-light or backlit conditions.
In a Greative Zone Mode
, When using a Creative Zone mode, press the < I > button to pop up the
built-in flash.
P
: Use this mode for automatic flash photography. The flash sync speed
and flash aperture will be set automatically
as with the <E > (Full Auto)
3
mode.
Tv
: Use this mode if you want to set a flash sync speed slower than 1/90
I
sec. The camera will set the flash aperture automatically
to obtain a
I
correct flash exposure.
t Av
: Use this mode if you want to set the flash aperture. In this mode, you
can obtain a balanced exposure between the subject and a dark
t
background (night scene, etc.) with a slow sync speed set automatically
t
by the camera. The flash illuminates the subject while the background is
!r
exposed with a long shutter speec.
M
: This mode enables you to set both the flash sync speed and flash
aperture. The subject is properly exposed with the flash and the
background is exposed with the flash sync speed and aperture you have
t set.
-
-
A'DEP : The result will be the same as using the <P > mode.
Flash Sync Speeds and Flash Apertures
Mode Sync Speed
Flash Aperture
P
The sync speed is set automati-
cally to 1/90 sec.
The flash aperture is set automati-
cally according to the TTL program.
Tv
Any sync speed 1/90 sec. or slow-
er can be set manually.*
The flash aoerture is set automatical-
ly to match the sync speed you set.
Av
The sync speed is set automatically
within a range of 30" to 1/90 sec.lo
match the flash aoerture vou set.
You set the flash aperture manually.
M
Any sync speed 1/90 sec. or slow-
er can be set manually.*
- lf the sync speed is set faster than 1/90 sec., it will be reset automatically to 1/90
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