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ARRI ALEXA Series User Manual

ARRI ALEXA Series
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32 Power Supply
2. Connect the battery cable KC-20S or KC-29S (spiral cable) to the
power supply socket on the camera and the 28V output on the
battery.
Note: When the battery voltage drops below the warning level, the BAT1 level
in the camera display will start flashing. A white i will appear, signaling more
information is available on the INFO screen. For more information on setting
the low battery warning level, see Menu>System>Power (on page 122).
7.5 Onboard Batteries
The camera can be equipped with adapters for either V-Lock or Gold
Mount video-style batteries. When a battery equipped with the TI-
protocol for battery communication is used, the ALEXA will display
remaining capacity as a percentage on the Home screen. For these
batteries, the user does not need to set the battery warning level.
Four different adapters are available:
BAB-G: Battery Adapter Back for Gold Mount batteries
BAB-V: Battery Adapter Back for V-Lock batteries
BAT-G: Battery Adapter Top for Gold Mount batteries
BAT-V: Battery Adapter Top for V-Lock batteries
Note: Adapters must be installed by a trained technician!
7.5.1 V-Lock Batteries
V-Lock batteries from different manufacturers may be used on the
ALEXA. When batteries from manufacturers such as ID-X and Bebop,
are used, their remaining capacity will be displayed as a percentage on
the Home screen.
To attach a V-Lock battery:
1. Align the v-shaped wedge on the battery with the v-shaped notch
on the battery plate.
2. Press the battery downwards until you hear a click.
3. Check that the battery is securely mounted on the battery plate.
To release a V-Lock battery:
1. Press the release button on the camera-left side or top of the battery
(manufacturer dependent).

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ARRI ALEXA Series Specifications

General IconGeneral
Dynamic Range14+ stops
Resolution4.5K (ALEXA LF), 6.5K (ALEXA 65)
Recording FormatsARRIRAW, Apple ProRes
Lens MountPL mount
ViewfinderOptional EVF (Electronic Viewfinder)
Sensor SizeSuper 35 (most models), Large Format (ALEXA LF, ALEXA 65)
ISO RangeEI 160 - EI 3200 (Base ISO 800)

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