AGFA 307 - Manual (Page 54)

Chapter 4 Flash Details
Using the Built-in Flash
The built-in flash provides coverage for lens focal lengths as short as
28mm. The flash output is controlled automatically by the camera’s TTL
(through the lens) flash metering system.
Grip both sides of the built-in flash and gently lift. After you have
finished using the flash, push it back down.
FLASH SIGNALS
If doesn’t blink after the picture is taken, flash output was not
sufficient. Make sure your subject is within the flash range (see next
page), and release the shutter after flash is charged.
Using the Build-in Flash
No Display Built-in flash is up or accessory flash is on and
charging.
glowing Flash is charged and will fire when the shutter-release is
pressed.
blinking (After picture is taken, blinks rapidly) Flash output was sufficient to
provide correct exposure.