Canon EOS 1300D - Manual (Page 105)

105
D Using the Built-in Flash
Effective Range of Built-in Flash (Approx. in meters / feet)
* For fill-in flash, the ISO speed may be set lower than ISO 800.
ISO Speed
(p.92)
EF-S18-55mm f/3.5-5.6 IS II
Wide Angle Telephoto
f/3.5 f/5.6
ISO 100 1 - 2.6 / 3.3 - 8.5 1 - 1.6 / 3.3 - 5.2
ISO 400 1 - 5.3 / 3.3 - 17.4 1 - 3.3 / 3.3 - 10.8
ISO 800/AUTO* 1 - 7.4 / 3.3 - 24.3 1 - 4.6 / 3.3 - 15.1
ISO 1600 1.3 - 10.5 / 4.3 - 34.4 1 - 6.6 / 3.3 - 21.7
ISO 6400 2.6 - 21.0 / 8.5 - 68.9 1.6 - 13.1 / 5.2 - 43.0
 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.