Warning functions
In the TTL or non -TTL automatic mode, both the ready- lights on the flash unit and in the camera'sviewfinder blink for 3 seconds after the flash unit fired at its maxi- mum output, indicating that the light might have been insufficient for correct exposure. In this case, check the subject distance and if it is out of the automatic shooting range, use a wider aperture if possible or move closer to the subject. Because the voltage of batteries decreases with use, the guide number might also be reduced slightly. The flash output of the 88-16 depends on the available ambient light and the reflectivity of the subject. Note that , because of these factors, the ready-light may blink to indicate that the light output was insufficient for correct exposure, even if the subject is within the auto shooting range.
