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Automatic AF llluminator Setting
The SM1S transmitter can support your
camera's auto focusing with an automatic AF
(Auto Focus) assist beam in low-light
conditions. It emits a red-colored beam
towards your subject. This is considered
"automatic" because it illuminates when the
camera actuates it (typically when the shutter
button is pressed half-way down).
Setting the Automatic AF llluminator In-Camera
Locate the camera's menu setting for "AF lluminator". Set it to Auto to use the beam or OFF so as not to
use it.
Some modem Sony cameras will not permit the AF beam to activate on a speed light or transmitter
(including their own brand) even when the AF llluminator feature is turned on. Rather, they may only
use a beam that is built into the camera. So, this automatic feature is highly dependent on your
camera's abilities. If your camera will not allow the transmitter beam to illuminate automatically you can
instead set the beam manually, on the transmitter, as explained in the upcoming section of this manual.
Setting the Automatic AF llluminator on the SM1 S
Begin by pressing the Home button, followed by the Function 4 button to enter the Utility Menu. Use the
Up/Down buttons to highlight the AF lllumintor setting which if Fn2. Press the Right button or the OK
button to enter the settings, use the UP/Down buttons to choose ON or OFF and then press the OK
button to confirm the setting. Use the Home button to return there and move on to your next important
task. Note, when Fn2 in the Utility Menu is turned ON, The AF llluminator Status icon appears on both
the TTL screen and the M Screen.
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