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Camera Controls 111
Sensor sync Select to sync the sensors of two ALEXAs. See
page 135 for more information.
•
Off: The camera is in non-synced mode for regular
use.
•
EXT master: The camera sends signals to an EXT
SLAVE camera via the EXT connector containing sync
clock and TC signals.
•
EXT slave: The camera receives signals from an EXT
MASTER camera containing sync clock and TC sig-
nals through the EXT connector.
HD out phase Select to adjust the phase of all MON OUTs in the range
of -30 to +30 HD clocks (1 HD clock = 13.4 ns). This can
be necessary for 3D applications with external recorders
that require the slave signal to arrive after the master
signal. Shift the phase backwards (+) on a slave camera
or forwards (-) on a master camera to achieve the cor-
rect signal order.
Send HD sync trigger When using two cameras in sensor sync mode without
settings sync, the EXT MASTER camera must send a
trigger to the EXT SLAVE camera to ensure the HD out-
puts of the cameras are synced. Press the jogwheel to
send the trigger.
Settings sync ALEXA cameras can be operated in synced-settings
mode, where the settings of two cameras can be synced
via Ethernet. See page 137 for more information.
Unless a phase offset is required by certain monitoring equipment, generally there will
be no need to adjust the HD out phase. Use "Send HD sync trigger" to bring the HD
output of connected cameras back into sync.
Test Signal
Color bars Select to activate SMPTE color bars
on all MON OUTs. The color bars are a
10-bit signal according to SMPTE RP
219-2002.
Note: Color bar is switched off when
recording is started.
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