Canon EOS 4000D Instruction Manual page 104

D Using the Built-in Flash
Effective Range of Built-in Flash
ISO Speed
(p.90)
ISO 100
ISO 400
ISO 800/AUTO*
ISO 1600
ISO 6400
* For fill-in flash, the ISO speed may be set lower than ISO 800.
When a high ISO speed is set and focusing distance is long, appropriate

exposure may not be obtained depending on the subject conditions, etc.
Do not perform flash photography when the built-in flash is held down

with your finger or not fully raised for some other reason.
Do not raise the built-in flash during shooting (during exposure).

104
EF-S18-55mm f/3.5-5.6 IS II
Wide Angle
f/3.5
1 - 2.6 / 3.3 - 8.5
1 - 5.3 / 3.3 - 17.4
1 - 7.4 / 3.3 - 24.3
1.3 - 10.5 / 4.3 - 34.4
2.6 - 21.0 / 8.5 - 68.9
(Approx. in meters / feet)
Telephoto
f/5.6
1 - 1.6 / 3.3 - 5.2
1 - 3.3 / 3.3 - 10.8
1 - 4.6 / 3.3 - 15.1
1 - 6.6 / 3.3 - 21.7
1.6 - 13.1 / 5.2 - 43.0