Canon EOS 350D Instruction Manual page 97

Built-in Flash Range
With EF-S18-55mm f/3.5-5.6 ll
ISO speed
100
200
400
800
1600
With EF-S17-85mm f/4-5.6 IS USM
ISO speed
100
200
400
800
1600
¡
Use the built-in flash at least 1 m/3.3 ft away from the subject. Closer
distances will cause the lens barrel to partially obstruct the flash.
¡
When using the built-in flash, detach any hood attahed to the lens. A lens
hood will partially obstruct the flash.
¡
A super telephoto lens or fast, large-aperture lens may partially obstruct
the built-in flash coverage. In such a case, using an EX-series Speedlite
(optional) is recommended.
¡
The built-in flash's coverage is effective with lens focal lengths as short
as 17mm. If the lens is shorter than 17mm, the periphery of the flash
photo will look dark.
¡
To retract the flash, push it back down.
¡
In the <s> <a> modes, even if you set the shutter speed to one faster
than 1/200 sec., it will be set automatically to 1/200 sec.
¡
If autofocus cannot be achieved, the AF-assist beam (small flashes fired
by the built-in flash) will be fired automatically (except in the <3> <5>
<7> modes). (p.74)
Wide angle: 18mm
Approx. 1 - 3.7 / 3.3 - 12.1
Approx. 1 - 5.3 / 3.3 - 17.4
Approx. 1 - 7.4 / 3.3 - 24.3
Approx. 1 - 10.5 / 3.3 - 34.4
Approx. 1 - 14.9 / 3.3 - 48.9
Wide angle: 17mm
Approx. 1 - 3.3 / 3.3 - 10.8
Approx. 1 - 4.6 / 3.3 - 15.1
Approx. 1 - 6.5 / 3.3 - 21.3
Approx. 1 - 9.2 / 3.3 - 30.2
Approx. 1 - 13.0 / 3.3 - 42.7
Using the Built-in Flash
Telephoto: 55mm
Approx. 1 - 2.3 / 3.3 - 7.5
Approx. 1 - 3.3 / 3.3 - 10.8
Approx. 1 - 4.6 / 3.3 - 15.1
Approx. 1 - 6.6 / 3.3 - 21.7
Approx. 1 - 9.3 / 3.3 - 30.5
Telephoto: 85mm
Approx. 1 - 2.3 / 3.3 - 7.5
Approx. 1 - 3.3 / 3.3 - 10.8
Approx. 1 - 4.6 / 3.3 - 15.1
Approx. 1 - 6.6 / 3.3 - 21.7
Approx. 1 - 9.3 / 3.3 - 30.5
[m / ft]
[m / ft]
97