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ARRI ALEXA Series User Manual

ARRI ALEXA Series
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Wireless Remote System 171
Note: Matching of the master and slave cameras' lenses in terms of focus, iris
and zoom ring positions depends on the mechanical accuracy of the lenses.
Make sure the lenses in use are matched as closely as possible.
13.3.2 Hand Units
For detailed information of the hand units, please refer to the device's
own manuals.
Wireless Compact Unit WCU-4
The WCU-4 is an all-inclusive and yet affordable hand unit offering up
to 3-axis lens control. It includes a newly designed, super-smooth focus
knob with adjustable friction and backlit, optionally pre-marked focus
rings that are well readable in the dark without distracting performers.
The whole unit is completely splash proof for ARRI-typical reliability.
The slider has its scale on the 3” display, providing clearly readable T-
stop numbers and optional on-screen markings. If preferred, the slider
can be also set to show zoom scales.
Wireless Compact Unit WCU-3
The WCU-3 is a compact hand unit featuring a radio system to connect
to the camera wirelessly. It has two LCS ports for connecting the device
to the camera via cable and to attach a ZMU-3. A wheel and a slider can
be used to control focus and iris axes. Zoom axis can be controlled by
attaching a ZMU-3 at an LCS port.
The WCU-3 also has a display where it shows current fps, shutter angle,
exposure index and white balance of the camera.
Wireless Main Unit WMU-3
The WMU-3 is a radio system for wireless connection to the camera.
Both WFU-3 and WZU-3 can be attached to the WMU-3.
Wireless Focus Unit WFU-3
The WFU-3 has a knob and a slider that can be used to control focus
and iris axes. It connects to the camera through a WMU-3 or a WHA-3.
Wireless Zoom Unit WZU-3
The WZU-3 controls the zoom axis. It connects to the camera through a
WMU-3 or a WHA-3.

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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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