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ARRI ALEXA Series User Manual

ARRI ALEXA Series
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50 Connectors
It is located at the back of the camera on the camera-right side.
9.2 REC OUT 1 + 2
The REC OUT consists of two BNC connectors capable of carrying
1920x1080 1.5G or 3G HD-SDI signals with frame rates from 23.976 to
60 fps according to SMPTE standards 274M, 292M, 372M and 425M
(Level B). RGB 444 at frame rates of 48, 50, 59.94 and 60 fps is output in
a proprietary format utilizing two 3G connections. ALEXAs with SxS
module can also output ARRIRAW in a proprietary format (ARRIRAW T-
Link) that is supported by a range of third-party recorders (not on
ALEXA HD and ALEXA HD Plus). The signal format can be changed in
the Recording menu.
The connectors are located at the back of the camera on the camera-
right side.
9.3 RET/SYNC IN
A return signal from another image source can be fed into the ALEXA’s
RET connector for displaying on EVF and/or MON OUT. The signal must
be a 1920x1080 422 1.5G single link according to SMPTE 274M and
292M. The output routing of the RET in signal can be set in the
Monitoring menu.
The connector is located at the back of the camera on the camera-right
side.
9.4 MON OUT
The MON OUT is a single BNC connector capable of carrying a
1920x1080 422 YCbCr 1.5G HD-SDI signal with frame rates of 23.976, 24,
25, 29.97 or 30 fps according to SMPTE standards 274M and 292M. The
signal format can be changed in the Monitoring menu.
The connector is located at the back of the camera on the camera-right
side.
9.5 EXT
The EXT connector is a multi-pin accessory connector that carries
signals for communication with various accessories and 24V power.
The maximum power output is 2.2A, shared with the RS outputs.
Cables are currently available for:
Connecting a UMC-3 remote motor controller

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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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