Troubleshooting
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39
Problem
Solution
The flash is turned on but won’t
fire.
Make sure that fresh batteries are installed and in the proper
orientation. (Page 12)
The flash is set up as a wireless
TTL slave but won’t fire.
• Make sure that the master flash is within the transmission range and
the wireless sensor on the slave is pointing toward the master flash.
Remove any obstructions in the line of sight between the two. (Page
37)
• The ambient light may be too high. (Page 37)
The flash is set up as a manual
(optical) slave, but the light is not
noticeable in the picture.
Make sure that the flash is set to the appropriate slave mode. (Page 33)
The edges of images look dark.
Make sure that the flash zoom setting corresponds to the focal length of
your lens. (Page 23)
There’s a whining sound coming
from the flash.
This is normal and does not indicate a malfunction. When the flash
becomes warm from continuous use, vibrations inside the unit may
cause this sound. It will dissipate as the unit cools.
