Sony DSLR-A700 - Manual (Page 75)

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If the operation and the function of the AEL (AE Lock) button have been changed
When using the wireless flash, it is recommended that you set [AEL button] (page 107) to [AEL hold] or
[
AEL hold] in the Custom menu.
If you select a setting that is retained after the button has been released ([AEL toggle]/[ AEL toggle]) the
camera is in slow sync recording mode while “AEL” appears in the viewfinder and on the LCD monitor.
Every test fire will cause the slow sync recording mode to switch on and off.
About the position of the camera and the flash
This camera uses the flash light of its built-in flash to send a signal to the off-camera flash to fire. Take note
of the following points to ensure proper transmission of the signal.
• Wireless flash shooting should be performed in a dark environment such as indoors, etc.
• We recommend that you place the camera and the external flash in the gray area within radius 5 m
(16.4 ft) as illustrated below. For more information about flash range, also refer to the operating
instructions supplied with your flash.
• Do not place the external flash directly behind the subject.
When shooting with the flash, you can adjust the amount of flash light alone, without
changing the exposure compensation. You can change the exposure of a subject which is
within the flash range, while leaving the exposure of the background, which is out of the flash
range, as it is.
z About the wireless flash channels
Change the channel of the external flash when another photographer is using a wireless flash nearby and
his/her built-in flash light triggers firing of your flash.
To change the channel of the external flash, refer to the operating instructions supplied with it.
Using the flash compensation