Canon EOS 1300D - Manual (Page 291)

291
Troubleshooting Guide
 If you shoot at night when the background is dark, the shutter speed
automatically becomes slow (slow-sync shooting) so that both the
subject and background are properly exposed. To prevent a slow
shutter speed, under [53: Custom Functions (C.Fn)], set [3: Flash
sync. speed in Av mode] to [1: 1/200-1/60sec. auto] or [2: 1/200sec.
(fixed)] (p.261).
 In shooting modes (<A> <C> <2> <4> <6>) whose default
setting is <a> (built-in flash auto firing), the built-in flash will be raised
automatically when necessary.
 If you use the built-in flash too often in too short a period of time, the
flash may stop firing for a while to protect the light-emitting unit.
 If you use a flash unit other than an EX-series Speedlite, the flash will
always be fired at full output (p.273).
 Under [z1: Flash control], if [Flash metering mode] in [External
flash C.Fn setting] is set to [TTL], the flash will always fire at full
output (p.201).
 If flash exposure compensation is set with the external Speedlite, flash
exposure compensation cannot be set with the camera. When the
external Speedlite’s flash exposure compensation is canceled (set to
0), flash exposure compensation can be set with the camera.
When I use the <f> mode with flash, the shutter
speed becomes slow.
The built-in flash rises by itself.
The built-in flash does not fire.
The external flash always fires at full output.
Flash exposure compensation cannot be set for
the external Speedlite.