Sony a (alpha) SLT-A33 Instruction Manual page 98

The flash range
The range of the built-in flash depends on the ISO sensitivity and aperture
value. Refer to the following table.
Aperture
ISO 100
setting
200
400
800
The AF illuminator
• AF illuminator does not operate when [Autofocus Mode] is set to
(Continuous AF) or the subject is moving in
(The or
• The AF illuminator may not operate with focal lengths of 300 mm or longer.
• When an external flash (sold separately) that is equipped with an AF
illuminator is attached, the AF illuminator of the external flash is used.
• AF illuminator does not operate when [Smile Shutter] is set to [On].
To deactivate the AF illuminator
MENU button t
To use the red-eye reduction
The red-eye reduction reduces the red-eye phenomenon by providing pre-
flash (low-flash light) a few times before shooting when using the flash.
MENU button t
98
F2.8
1 – 3.6 m (3.3 – 12
feet)
1 – 5.1 m (3.3 – 17
feet)
1.4 – 7.1 m (4.7 – 23
feet)
2 – 10 m (6.6 – 33
feet)
indicator lights.)
2 t [AF Illuminator] t [Off]
1 t [Red Eye Reduction] t [On]
F4.0
1 – 2.5 m (3.3 – 8.2
feet)
1 – 3.5 m (3.3 – 12
feet)
1 – 5 m (3.3 – 16
feet)
1.4 – 7.1 m (4.6 – 23
feet)
F5.6
1 – 1.8 m (3.3 – 5.9
feet)
1 – 2.5 m (3.3 – 8.3
feet)
1 – 3.6 m (3.3 – 12
feet)
1 – 5.1 m (3.3 – 17
feet)
(Automatic AF).