ARRI ALEXA Series User Manual

Sensor modes 16:9 and 4:3 163
MENU>Monitoring>EVF>Framelines
MENU>Monitoring>EVF>Anamorphic desqueeze
1
MENU>Monitoring>MON OUT>Frame rate
MENU>Monitoring>MON OUT>Scan format
MENU>Monitoring>MON OUT>Status info
MENU>Monitoring>MON OUT>Surround view
MENU>Monitoring>MON OUT>Surround mask
MENU>Monitoring>MON OUT>Framelines
MENU>Monitoring>MON OUT>Anamorphic desqueeze
1
MENU>Project>Project fps
In addition, the slave camera takes over the Camera ID of the master
camera, so file names are identical except for the Camera ID prefix. It is
important to give the master and the slave camera different Camera ID
prefixes to prevent duplicate file names.
1
Valid license for anamorphic desqueeze must be installed on both
cameras.
2
Valid license for High Speed recording must be installed on both
cameras
12.6 Sensor modes 16:9 and 4:3
The ALEXA M, ALEXA Plus 4:3, ALEXA Studio and all ALEXA XT
models can be operated in 16:9 or 4:3 mode.
In 4:3 mode, the camera captures images from a vertically extended
sensor area. The used area is 23.76 x 17.82mm in size, which translates
to 2880 x 2160 sensor photo sites.
Note: The sensors of standard ALEXA and ALEXA Plus cameras can only be
operated in 16:9 mode.
To change the sensor mode:
1. In the System menu, select Sensor.
2. Select Sensor mode. The current sensor mode is indicated on the
top line on the SENSOR screen.
3. Press the jogwheel to select 16:9 or 4:3 sensor mode.

ARRI ALEXA Series Specifications

General

Dynamic Range	14+ stops
Resolution	4.5K (ALEXA LF), 6.5K (ALEXA 65)
Recording Formats	ARRIRAW, Apple ProRes
Lens Mount	PL mount
Viewfinder	Optional EVF (Electronic Viewfinder)
Sensor Size	Super 35 (most models), Large Format (ALEXA LF, ALEXA 65)
ISO Range	EI 160 - EI 3200 (Base ISO 800)