AMIRA, ALEXA, ALEXA XT, and ALEXA Mini are trademarks or registered trademarks
of Arnold & Richter Cine Technik GmbH & Co. Betriebs KG. All other brands or
products are trademarks or registered trademarks of their respective holders and
should be treated as such.
Original version.
For further assistance
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
Tuerkenstr. 89
D-80799 Munich, Germany
E-mail: service@arri.com
www.arri.com/service
Document revision history
Version
2.5
2.6
3.0
4.0
ID
10001121
10001121
10001121
10001121
Release
K08771
K08878
K08941
K09035
Date
Preliminary version
14th July 2015
02nd Nov 2015
30th March 2016
Contents3
Contents
1For your safety / 为了您的安全..............................................................7
1.1Risk levels and alert symbols / 危险级别和警示标志.............................7
During extended operation or operation in high ambient temperatures, the fan outlet
at the camera rear, the CFast drive and the CFast card can get hot.
Never cover, obstruct or block the fan in- or outlets while the camera is powered.
1.3General precautions / 般安全措施
NOTICE
Even rugged cameras use components sensitive to improper use.
Always unplug the camera from power sources before making changes to the setup
or system (in particular: changing cables).
Direct sunlight can result in camera housing temperatures above 60 °C (140 °F). At
ambient temperatures above 25 °C (77 °F), protect the camera from direct sunlight.
Protect the optical system and sensor: Never point the camera or viewfinder into
direct sunlight.
Avoid permanent sensor damage: Never let any direct light or reflections from highenergy light sources (e.g. laser beams) enter the camera's optical path.
Protect the sensor: Always keep a lens or protective cap on the empty lens mount.
Change lenses in dry, dust-free environments only.
Always clean the sensor cover glass according to ARRI instructions.
Only use the tools, materials and procedures recommended in this document. For
the correct use of other equipment, see the manufacturer's instructions.
The product is solely and exclusively available for commercial costumers and shall
be used by skilled personnel only. Every user should be trained according to ARRI
guidelines.
Use the product only for the purpose described in this document. Always follow the
valid instructions and system requirements for all equipment involved.
The ALEXA Mini is a 35 mm digital camera solely and exclusively for recording
images at various resolutions suitable for a variety of distribution formats:
REC 709 encoding (through use of look files), Log C or ARRIRAW* encoding
•
CFast 2.0 card recording
•
Up to 200 fps with full image quality
•
35 mm CMOS sensor in 16:9 or 4:3* modes
•
EVF with OLED eyepiece
•
Fold-away monitor for both live view and user interface access
•
Small and lightweight built for high mobility and special applications
•
* Feature requires licensing.
12Scope of delivery and warranty
3Scope of delivery and warranty
NOTICE
Product and packaging contain recyclable materials. Always store, ship, and
dispose of according to local regulations.
ARRI is not liable for consequences from inadequate storage, shipment or disposal.
Delivery
On delivery, please check if package and content are intact. Never accept a damaged/
incomplete delivery. A complete delivery includes:
ALEXA Mini camera with lens mount according to order: titanium PL, AMIRA
•
PL, EF
Antenna
•
USB memory stick
•
3 mm Allen key
•
Quick Guide
•
Original packaging incl. drying agent
•
NOTICE
ARRI offers an increasing variety of product bundles and additional accessories.
For details, please consult our website or your local ARRI Service Partner.
Warranty
For scope of warranty, please ask your local ARRI Service Partner. ARRI is not liable
for consequences from inadequate shipment, improper use, or third-party products.
1Function button
2Camera buttons 1-3
3Recording button
4Status LED
Camera layout15
REC
M
VF2
VF1
EXP
PK
1
2
3
4
Top
1MAP-1
2MVB-1
3MVF-1 buttons
4Record button
16Camera layout
1
2
3
4
Bottom
1MVF-1 type label
2PLAY button
3Camera type labels
4LBUS connector
Camera layout17
1
2
3
4
Front
1RMB-3
2Lens mount (here: titanium PL)
3LBUS connector
4Audio connector
18Camera layout
1
2
3
8
9
1
0
1
1
4
5
6
7
Back
1Fold-away monitor (MVF-1)
2OLED eyepiece
3Timecode connector
4White radio antenna
5I/O panel
6Media panel (CFast 2.0 card slot, USB)
7Ethernet connector
8Boot status LED
9Power button
10Recording status LED
11Fan outlet
CAUTION!
Hot surfaces! Risk of injury and damage!
During extended operation or operation in high ambient temperatures, the fan outlet
at the camera rear, the CFast drive and the CFast card can get hot.
Never cover, obstruct or block the fan in- or outlets while the camera is powered.
Camera layout19
1
4.1Product identification
The FCC conformity label and the CE type label with serial number (1) are on the
camera bottom. The serial number consists of the last 5 digits of the equipment
number K1.0003873-XXXXX.
20Power supply
5Power supply
The camera power is supplied by external power sources only.
NOTICE
If the power supply is interrupted with the camera switched on, the camera will
automatically repower and boot-up on reconnection.
Use the 8-pin LEMO connector and a KC50-S or KC50-SP-S cable to supply the camera with 10.5 to 34 V DC.
Switching on/off21
1
2
3
4
6Switching on/off
NOTICE
Before switching on, ensure that the camera is connected to an external power
source.
The power button background illumination is on when the power is in the valid
range.
To switch on the camera:
► Press the power button (1).
The camera starts booting. The boot status is indicated as follows:
Boot status LED (2) is...Camera
flashing blueis booting
solid bluehas finished the boot process
For mounted MVF-1 only: During the boot process, the ARRI logo appears in the
monitor of the MVF-1 (4).
To switch off the camera:
► Press and hold the power button (1) until the camera has switched off and the boot
status LED (2) turns off.
For mounted MVF-1 only: On the monitor of the MVF-1, a countdown appears.
On reaching zero, the camera switches off.
22Switching on/off
To check the recording status
The recording status is indicated as follows:
Record status LED (3) is...Camera is...
solid greenready for recording
solid redrecording
offnot ready for recording. Check, if
the CFast 2.0 card is valid. If not:
Insert a valid CFast 2.0 card. See
page 147.
flashing green/red alternatelynot ready for recording due to an er-
ror.
Check alert screen on MVF-1 for
reasons.
Reboot camera.
NOTICE
The recording status is also visible in the home screen, the live screen, the EVF
image, and the SDI image.
Connectors23
1
2
7Connectors
NOTICE
Connecting or disconnecting devices or cables while recording can disturb the
audio/image signal due to static electricity.
7.1Front connectors
1Audio in
2L-Bus
Audio in (5-pin LEMO)
2-channel line level audio input.
LBUS (4-pin LEMO)
LBUS output for daisy-chainable active lens motors.
Supports CMotion cforce motor and ARRI cforce mini motor.
24Connectors
1
3
2
4
5
6
7
7.2I/O panel
NOTICE
If the power supply is interrupted with the camera switched on, the camera will
automatically repower and boot-up on reconnection.
1Timecode connector5BAT main power in
2White radio antenna6EXT connector
3MVF-1 or CCP-17Ethernet connector
4HD-SDI image out 1 & 2
TC (5-pin LEMO)
The TC connector is a 5-pin LEMO socket. It accepts and distributes LTC (Longitudinal Time Code) signals.
Note: The camera has a TC buffer to keep a synced external TC
for up to three minutes while camera power is disconnected.
White radio antenna
Mounting point for white radio antenna for lens control.
Connectors25
NOTICE
Do not leave the antenna connector open during operation or transport. The radio
module inside could be damaged by electrostatic discharge on the open connector.
ARRI recommends using the originally supplied antenna only (order number:
K2.0001996).
EVF (16-Pin ODU)
Hot swappable interface for MVF-1 or CCP-1.
SDI OUT 1 & 2 (BNC)
Both BNC outputs deliver image outputs in 1920 x 1080 422
1.5G, 422 3G, 444 3G and 422 6G* single link formats. Through
a hardware modification, SDI 2 can be reconfigured into a SYNC
connector for analog genlock signals (Black burst, Tri-level sync).
Please contact an ARRI camera service center for more information.
*Only on SDI 2 in UHD recording format
BAT (8-pin LEMO)
Via cables KC50-S (2 m, straight) and KC50-SP-S (coiled), this
main power supply input accepts 10.5 to 34 V DC.
EXT (7-pin LEMO)
A connector for external accessories, carrying two CAN buses and accessory power output at camera voltage level (1.0 A
max.). With an external adapter, R/S functionality is supported.
ETH (10-pin LEMO)
Standard Ethernet connectors don't deliver the durability and reliability required by ARRI, so ALEXA Mini uses a 10-pin LEMO
connector. A special cable, available from ARRI (model KC-153S), is required to connect the Ethernet connector to a standard
RJ-45 Ethernet connector.
Note: The RCU-4 cannot be used with an ALEXA Mini.
26Connectors
1
2
3
4
7.3Media panel
1Status LED3USB
2CFast 2.0 card
slot
4Lid
Card (CFast 2.0)
USB
Storage media slot for CFast 2.0 recording cards.
Interface for USB memory sticks with FAT file system. Can also
be used to charge USB devices. Supplies 5V with a maximum
current of 500mA.
Connectors27
2
3
1
7.3.1Preparing a USB memory stick
USB memory sticks for the ALEXA Mini must have a specific folder structure which
can be created with the camera.
1. To prepare a USB memory stick: Open the media lid (1).
2. Connect a FAT-formatted USB stick (3) to the camera (2).
3. Note: To avoid file corruption, never remove the USB stick during write access.
4. Via jogwheel, open MENU > Media > Prepare USB medium.
28Connectors
2
1
3
7.3.2Changing a CFast 2.0 card
NOTICE
ALEXA Mini does not accept ALEXA-formatted CFAST 2.0 cards, and vice versa.
Before using a CFAST 2.0 card with ALEXA Mini, you must erase it in-camera to
create the required file system.
Avoid damage to the contacts of both camera and card. Always insert cards as
described in this document.
Never change memory cards when recording - this may damage the recorded clip.
1. Open the lid (1).
2. Align the card's positive edge (3) facing the camera rear.
3. With the contact pins first, gently insert the card, until it audibly locks (2).
4. Gently close the lid (1). Never force it closed on an unlocked card.
Connectors29
2
1
5. For card removal: Open the lid (1).
6. Push the card in until it audibly unlocks (2).
7. Remove the card.
30Lens mount/filters
1
8Lens mount/filters
1Lens mount (here: titanium
PL)
Cooke /i support
The camera supports the Cooke /i protocol for lenses running FW versions according
to the following table.
Lens typeFW version
S4 /i Prime lens (10-bit)0.29 or higher
S4 /i Prime lens (12 bit)0.39 or higher
S4 /i Zoom lens (10 bit)1.29 or higher
S4 /i Zoom lens (12 bit)1.39 or higher
The FW version can be retrieved from the lens with the Cooke Viewer Lens Display
program. For detailed info, please contact Cooke Optics directly.
8.1ND filter module
ALEXA Mini uses FSND (Full Spectrum Neutral Density) filters, which are linear
across the full spectrum of the camera sensor. This prevents artifacts from infrared
wavelengths and the need for additional IR filters.
NOTICE
The camera contains an internal ND filter module, consisting of ND 0 (Clear), 0.6, 1.2
and 2.1 filters. The filters can be operated via user buttons, MVF-1, web remote, or
WCU-4.
Lens mount/filters31
1
2
8.2Changing a lens
NOTICE
Protect the sensor: Always keep a lens or protective cap on the empty lens mount.
Change lenses in dry, dust-free environments only.
Never exceed the maximum lens dimensions.
Have every lens properly shimmed as prescribed by the manufacturer.
PL mount
Note: Please use a lens support system for PL lenses above 3 kg/6.6 lbs.
1. Observe maximum lens dimensions.
2. Unlock the lens mount counter-clockwise (1) and remove the lens or cap.
3. Never touch the sensor.
4. Either: Mount the next lens and lock (2) the lens mount clockwise.
5. Or: Always cap and lock (2) an empty lens mount clockwise.
32Lens mount/filters
3
4
5
1
2
EF mount
Note: Please use a lens support system for EF lenses above 3 kg/6.6 lbs.
1. Observe maximum lens dimensions.
2. Turn the lever counter-clockwise (1) to unlock the mount.
3. Either: Remove the cap.
4. Or: Press and hold the button (2) to unlock the lens.
5. Turn the lens (3) counter-clockwise, then remove it.
6. Never touch the sensor.
7. Either: Mount the next lens:
Align the dots of both lens and lens mount.
°
Push the lens into the mount.
°
Turn the lens clockwise (5) until the bayonet locks.
°
Turn the lever clockwise (4) to tighten the lens to the lens mount.
°
8. Or: Always cap the empty lens mount.
8.3Lens control
Control of lens iris is possible with ENG PL mount and EF lenses. You can control the
iris manually, via user button, or via auto iris.
8.3.1Manual iris adjustment
HOME > EI > IRIS
Lens mount/filters33
1
2
1
2
Pressing the wheel (1) changes the step size between full and sub-stops (2). Note:
Sub-stop precision depends on the lens type and is automatically set by the camera.
On the live screen, you can activate and deactivate iris adjustment (1) by shortpressing the lower round (not oval!) button (2). Keeping the button pressed (2)
activates iris adjustment until it is released. (2). Note: Depending on the image flip, the
round buttons may appear on the right.
8.3.2Iris control via user button
MENU > User button > Button X
For iris control, assign one user button each with Open Iris and Close Iris. See
page 135.
34Lens mount/filters
1
8.3.3Auto iris
HOME > EI > IRIS > OPTIONS
Via jogwheel (1), you can define the auto iris behavior.
Auto iris mode: Defines the iris calculation:
Integral: Iris is calculated based on full image content.
•
Center: Iris is calculated with higher priority on image center.
•
Auto iris offset: Corrects the auto iris calculation result by up to +/- 3 stops in 1/3 stop
step sizes. Activate via user button.
Camera controls35
RECREC
1
2
9Camera controls
In this chapter the camera controls of the Alexa Mini are shown.
9.1Function button FN and camera buttons 1-3
Camera buttons as user buttons:
By default, the camera buttons 1 to 3 function as user buttons.
1. In the camera menu (MENU > User buttons > Camera user buttons), set the
desired functions to the user buttons.
The functions are assigned to the user buttons.
2. Press a user button (2) to trigger its function.
Depending on the assigned user button function, the LED reflects the function
state.
Camera buttons to control standard camera functions:
► Press and hold the function button (1); then press a camera button (2). If a
simultaneous press cannot be performed, the FN button can be pressed twice
within 0.5 seconds to bring the camera buttons into function selection mode for 2
seconds. During these two seconds, pressing a camera button will de-/activate its
assigned function.
The LED of the FN button reflects that a standard function is active. An LED on
each button reflects the functional status.
The following standard functions can be triggered:
Function button &
camera button
Function
1Toggles the overlay menu of the Live view. In the
overlay menu, the camera buttons control the following functions:
36Camera controls
Function button &
camera button
2Arms the card erase. To trigger the card erase, press
3Starts/stops the playback. During playback, the cam-
Function
User buttonFunction
1Select Backward
2Select Forward
3Confirm
user button 3 twice.
Any other button can be pressed to cancel the action.
After the erase, the overlay can be reset by pressing
any button.
era buttons control the following functions:
User buttonFunction
1Skip Backward
Overlay menu
The overlay menu allows the user to control the basic camera parameters FPS,
Shutter, Exposure Index, ND filter and WB.
It can be activated and deactivated by pressing the buttons FN+1.
The overlay menu is active on the EVF and monitor images of the MVF-1, as well on
the SDI out (if SDI processing is activated).
See chapter "Overlay menu" for detailed info.
9.2Recording button
Pressing a recording button returns the MVF-1 user interface to the home screen
and disables the menu access.
Recording also disables the home screen buttons for FPS, TC, Shutter, and Look
settings.
2Skip Forward
3Play/Pause
NOTICE
Camera controls37
RECREC
1
2
To start recording:
Prerequisite: The camera is prepared.
1. Preset all buttons.
2. Press REC (1) on the left camera side.
The camera starts recording. The recording status LED (2) reflects the recording
status:
Recording status
LED (2) is...
solid greenready for recording
solid redrecording
flashing redRecording starts/stops
offnot ready for recording. Check if the CFast 2.0 card
flashing green/red
alternaterly
Camera is...
is valid. If not: Insert a valid CFast 2.0 card. See
page 147.
not ready for recording due to an error.
38Camera controls
1
3. For mounted MVF-1 only: Press REC (1) on the MVF-1:
NOTICE
Never change memory cards when recording - this may damage the recorded clip.
NOTICE
Connecting or disconnecting devices or cables while recording can disturb the
audio/image signal due to static electricity.
MVF-1 controls39
1
3
2
4
56
7
9
8
1
0
1
1
10MVF-1 controls
1Monitor (Live & GUI)7Monitor button
2Peaking button8Proximity sensor
3Exposure tool button9Diopter control
4VF-1 user button10Screen buttons
5VF-2 user button11Jogwheel
6Recording button
Proximity sensor
This infrared sensor automatically deactivates the MVF-1's internal OLED panel when
you withdraw your eye. The sensor is placed either on the bottom left-hand side of the
viewfinder (Generation 1), or it is integrated in the eye cup (Generation 2).
The Alexa Mini MVF-1 contains the generation 2 proximity sensor.
NOTICE
To avoid hardware damage, always keep the sensor unobstructed.
40MVF-1 controls
1
2
3
10.1EVF image/monitor
When you look through the eyepiece, the proximity sensor (3) activates the EVF
display (2).
You can add status data from the home screen (1) to the MVF-1 image (2).
If activated, overlays around the EVF image show essential camera, audio, and
recording statuses.
You can modify/deactivate these status bars via the EVF overlays and EVF statuscomponents menu. For more details, see the User manual.
Note: In Overlay mode (see below), all status bars appear on the active MVF-1
image.
1Sensor FPS10Camera status
2SHUTTER value11Reel and clip info
3EI Exposure index12BAT level/status
4Internal ND filter13Alert and temperature status
5WB White balance14Camera settings icon (Recording resolution,
6Icons for USB status, lens motor calibration
request, WiFi status
7Audio status16LDS info
8TC Timecode (if enabled)17Framelines
9CARD capacity/status18Center mark (here: cross)
Rec gamma, S16 (if S16 mode is active), Iris,
Fan status, Framegrab, Camera lock)
15EVF image status (EVF gamma, EVF
exposure tool, EVF peaking)
MVF-1 controls41
2
1
3
1Safe mode
In Safe mode, all status bars appear in a black frame (1) outside the active MVF-1
image.
Note: If surround view is active, the area is marked by a surround mask.
10.2MVF-1 buttons
10.2.1 PK peaking button
1. To activate peaking on monitor (1) and MVF-1 (3): Press PK (2).
2. Peaking highlights the image parts that are in focus for better focus judgement.
3. For PK settings: Go to MENU > Monitoring > EVF/Monitor > Peaking.
42MVF-1 controls
2
1
3
10.2.2 EXP exposure tool button
The EXP button (2) activates the set exposure tool on the monitor (1) and EVF image
(3). Use the tool for evaluation of the image exposure levels. An activated tool lights
up the button (2).
For EXP setting: Go to MENU > Monitoring > Exposure tools.
In Zebra mode, the tool overlays up to two luminance ranges with diagonal stripes.
High zebra ranges above, Mid zebra around the user-defined luminance value.
False color mode overlays predefined luminance ranges as follows:
Luminance range
White clipping
Just below white clipping
One stop over medium gray (Caucasian skin)
18 % medium gray
Just above black clipping
Black clipping
Signal level
100 to 99 %
99 to 97 %
56 to 52 %
42 to 38 %
4.0 to 2.5 %
2.5 to 0.0 %
Color
Red
Yellow
Pink
Green
Blue
Purple
MVF-1 controls43
1
10.2.3 VF1 & VF2 user buttons
1. Via the user button menu (see "Presetting user (and VF) buttons"), you can assign
a function to both VF1 and VF2 buttons (1).
10.2.4 PLAY button
1. Press PLAY (1) for one second to see the last clip of the active CFast 2.0 card.
Playback is active on monitor, on EVF and on SDI out.
°
2. You may toggle between play and pause by briefly pressing PLAY (1) again.
3. To exit playback: Press PLAY (1) for one second.
4. Extended playback control is available via the on-screen navigation (see below).
44MVF-1 controls
10.2.4.1 Playback screen controls
Playback loads the last active clip (paused on the first frame).
•
Press ARROW (8) to hide/show button info overlays
•
To toggle between PLAY/PAUSE: Press the lower mid screen button (6) or the
•
jogwheel.
While paused: Scroll up/down via the jogwheel to load the next/previous frame.
•
While playing: Scroll up/down via the jogwheel to increase or decrease the
•
playback speed up to 16x both forward and backwards.
Press SKIP FWD (4) to load the next available clip.
•
Press SKIP REV (2) to load the previous available clip.
•
Press WAVEFORM (3) to set waveform overlay on monitor.
•
Press CLIPLIST (7) to select another clip for playback from a list of all clips on
•
the inserted cards.
Press OPTIONS (5) to set the clip end action.
•
Press EXIT (1) to end playback.
•
Note: When playing back clips with project rates of 48 fps or greater that were
recorded in ARRIRAW or with ProRes resolutions of 3.2K or 4K UHD, the camera only
plays back every second frame to ensure smooth playback.
CLIPLIST
1. Via jogwheel (1), scroll to the required clip.
2. Additional information on the selected clip shows (3):
Codec: Recording codec of clip.
°
Resolution: Recording resolution of clip.
°
Duration: Clip duration at playback speed.
°
Rec FPS: Sensor frame rate of clip recording.
°
Project rate: Playback frame rate of clip.
°
TC: Timecode start value of clip.
°
3. To play the selected clip: Press the jogwheel (1).
4. To end playback: Press EXIT (2).
5. To return to the play screen without loading a new clip: Press BACK (4).
MVF-1 controls45
1
OPTIONS
Pressing OPTIONS on the play screen allows you to modify the playback behaviour.
Play end mode: Sets the playback behavior at the end of a clip:
Pause on end: Playback pauses at the end of this clip.
•
Pause on start: Playback pauses at the beginning of this clip.
•
Loop: Playback continues from the beginning of the same clip again.
•
Play next clip: Playback continues with the next clip in the cliplist.
•
Exit playback: Camera exits playback.
•
Monitor waveform: Sets the waveform overlay on monitor to On or Off.
10.3Diopter adjustment
► Twist the ring left or right for diopter adjustment (1).
46MVF-1 controls
1
2
3
1
10.4Adjusting the monitor
► Fold (1), swivel (2) and flip (3) the monitor according to your needs.
10.5Changing the monitor mode
1. To change the monitor mode between live view and user interface: Press M (1).
2. In live mode, toggle the status bar content (1) via the lower buttons.
MVF-1 controls47
3
2
1
5
6
7
8
9
1
4
0
3. Via Menu > Monitoring > EVF/Monitor > Settings > Monitor flip mode, you can
disable the location sensor that automatically flips the user interface to match a
left- or right-sided monitor position (3).
10.6Live monitor
Below the camera live image, the live screen shows image and camera status. You
can toggle the bar's content via the left or right oval button below. The center oval
button returns you to the main status bar.
1Surround mask6Exposure index
2Camera temperature warning (warning=red) 7White balance
3ALERT message8Shutter value (° or sec)
4Center mark9Sensor frame rate
5Active ND filter10Camera status (here: Standby)
Surround mask
This grayed-out frame marks all non-recorded parts of the
sensor image. Can be deactivated.
If surround view is active, the non-recorded area is
masked. Style options are: Black line, colored line, or
semitransparent mask (as shown here).
48MVF-1 controls
Center mark
Marks the image center. Can be set to Off, Cross, Dot or
Small Dot.
10.7User monitor
Screen buttons and jogwheel
There are eight screen buttons, four above (2) and four below (3) the display (4). Their
function depends on the screen content (4) and is labeled directly above or below
each button.
Unlabeled buttons have no function for that screen. A grayed-out label means:
function currently not available. Via jogwheel (1), you can:
Scroll or navigate through lists and menus.
•
Change values (by scrolling up or down).
•
Confirm settings (by pressing the wheel).
•
On the home screen (4), pressing the jogwheel (1) opens the camera menu.
MVF-1 controls49
10.8Adjusting the monitor brightness
1. Open the home screen.
2. Via jogwheel (1), open MENU > Monitoring > EVF/Monitor > Settings.
3. Scroll to Monitor brightness.
4. Press the jogwheel.
5. Adjust the brightness by scrolling to the required value: 1 (= minimum) to 10 (=
maximum).
6. Press HOME.
50Overlay menu
11Overlay menu
The overlay menu offers a reduced set of camera parameters for adjustment. When
activated, it is visible in the top section of the image on the MVF-1 monitor and EVF
and on any SDI output which has SDI processing activated. The overlay menu is a
quick way to change the following camera settings:
Sensor FPS
•
Shutter (Shutter Angle / Exposure Time)
•
Exposure Index
•
ND filter
•
White Balance
•
Sensor FPS, Shutter and White Balance cannot be changed manually, but in the
range of their user predefined lists. ND filter is changed instantly and requires no
additional confirmation step.
A white frame marks the selected parameter. A yellow font means it is in edit mode
and can be changed.
Overlay menu51
For detailed instructions on how to activate and operate the overlay menu, see the
following sections.
Camera buttons
1Activate the overlay menu by pressing FN + 1.
2Select a parameter with buttons 1 or 2.
3Start editing the parameter by pressing button 3.
4Select the new parameter value with buttons 1 or 2.
5Confirm the new value by pressing button 3.
6If required, repeat steps 2-5 for other parameters.
7Exit the overlay menu by pressing FN + 1.
MVF-1
When the overlay menu is activated, the jogwheel of the MVF-1 can be used to select,
edit and confirm parameter changes.
52Web remote
12Web remote
ALEXA Mini has a web remote function for full remote control of the camera with a
web browser. It requires a connection to the camera via WiFi or Ethernet (with ALEXA
Ethernet/RJ-45 Cable KC-153-S, K2.72021.0).
By default, WiFi is active. If WiFi is inactive, enable WiFi via the MVF-1, by navigating
to MENU>System. Without the MVF-1, the web remote must first be used via a cabled
Ethernet connection to enable WiFi.
The web remote has been tested with the following platforms and browsers:
Desktop browsersGoogle Chrome 45
Mozilla Firefox 44
iOSSafari 9.2.1
AndroidGoogle Chrome Mobile 45
Open a web browser and enter the URL: http://mini-xxxxx.local (replace xxxxx with the
5-digit serial number of your camera).
NOTICE
To use the web remote function via this URL, the device must support zeroconfiguration networking (zeroconf), e.g. through Apple Bonjour. Without zeroconf,
the webremote can be reached via the IP adress of the network (WiFi or LAN IP).
The WiFi IP is fixed to 192.168.153.1. The LAN IP can be either assigned from a
DHCP server or configured manually, and can be checked with an MVF-1 via the
INFO > Network info screen.
MAIN, PLAY, REC INFO and USER
Web remote is divided into the following four sections:
Web remote53
MAIN: Contains the same UI as the camera monitor (no live screen). Click/tap the
screen button tabs to enter a screen/trigger a function. Menu items can be clicked/
tapped directly.
PLAY: Starts playback on the camera. Provides the same controls as the MVF-1, but
no video signal.
REC INFO: Contains info on the main recording relevant parameters, plus a REC
button. Click the big circle icon to start/stop recording.
Note: Rec status may respond with a little delay depending on network speed.
54Web remote
USER: Shows configuration of user buttons and allows to trigger them. Press number
icons to trigger user buttons.
Home screen55
13Home screen
The home screen gives access to essential camera parameters and statuses. Oval
screen buttons and a jogwheel allow quick parameter editing. To return to the home
screen from any other screen: Press HOME.
If red: Alert messages are available (critical to camera
functionality). Press the round button to read them.
FPS button
FPS shows the sensor frame rate, allowing adjustments
from 0.750 to 200.000.
Note: If sensor fps does not match the project rate, the
FPS label turns orange and shows an exclamation mark.
TC button
Shows the current Timecode values and the active project
rate, allows adjustment of TC formats and values.
56Home screen
Note: If Timecode is forced to Rec Run, or external TC
is missing, the TC label turns orange and shows an
exclamation mark. Enter the TC screen by pressing the
TC button to see more info on the warning.
SHUTTER button
Shows shutter settings adjustable either as angle (5.0 to
356.0°) or exposure time (1/25 to 1/8000s).
Shutter angle, sensor rate and exposure time relate as
follows: Exp time=Shutter angle/(360*fps). Maximum
shutter angle limited by resulting exposure time (1/25s
max).
INFO button
Provides access to the camera info screens.
EI button
Shows the current EI rating and active ND filter value.
Allows you to set the exposure index in ASA.
Base sensitivity for the ALEXA Mini is 800 ASA. The EI
rating can be adjusted from 160 to 3200 ASA.
Note: ASA and ISO ratings are identical.
Via EI>ND, the ND filter can be adjusted.
LOOK button
Shows the REC path gamma setting and the name of the
active look. Opens the look screen, which provides further
access to gamma settings of all image paths and global
look.
WB button
WB shows the camera’s current white balance (=
preadjusted color temperature of a light source).
You can adjust WB from 2,000 to 11,000 Kelvin (here:
5,600) in steps of 10 K for red/blue correction.
Also, you can color-compensate for green/magenta tints
in a range from -16.0 to +16.0. Positive or negative CC
color compensation values then appear in superscript
(here: +0.0).
For automatic white balance: Assign Auto WB to a user
button and press it twice within one second.
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13.1Status section
The status section on the home screen shows key data on recording, voltage,
lockings, etc.:
1Status icons5Card status
2Audio meters6Recording status
3Codec/resolution7Battery voltage
4Camera status
WiFi, CAL and LDS icons
WiFi: Camera WiFi is active.
CAL: Info on lens motor calibration:
Orange: Lens motor calibration required
•
White: Lens motor calibration active
•
LDS: Indicates an error on the LDS interface.
Temperature icon
Alerts on sensor temperature issues:
Black: Warning
•
Orange: Error
•
Red: System temperature error (see INFO >
•
System status)
Fan icon
Icon color shows the fan noise status:
Grey: About to increase above 20 dBa.
•
Orange: Higher than 20 dBa.
•
USB icon
Icon color shows USB memory status:
White: Ready
•
Gray: Read only
•
Orange: Not usable
•
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Camera icon
White camera icon: Grab is active.
Orange camera icon: Grab failed. Typically cause by
missing USB.
GEN icon
The GEN icon is visible if Genlock is activated via MENU
> System > Genlock. Icon color shows the Genlock
status.
White: Genlock active
•
Orange: Genlock signal missing
•
Audio meters
Show current level of camera audio channel signals. If
audio is disabled, an icon appears.
Black markers at signal levels -20, -18, -9 dBFS for
reference test tone. Yellow marker at -5 dBFS and red
marker at -2 dBFS indicate a signal close to clipping. A
red frame around the meter indicates a clipping at the A/D
stage.
Codec/Resolution
Currently active codec and recording resolution.
Camera status
STBY: Ready for recording.
REC: Recording.
ERASE: Erasing a CFast 2.0 card. Active erasure
disables recording.
None: Recording not possible (e.g. card missing/invalid/
full).
Card status
Remaining capacity of CFast 2.0 card, at current FPS and
codec combination in real time.
When card capacity is less than 2 minutes, capacity
values starts flashing.
Recording status
REEL: Current reel of active recording medium.
CLIP: Current clip of current reel.
DUR: Duration of currently recorded clip (during REC) or
last recorded clip (during STBY).
BAT
Current battery supply level.
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13.2ALERT messages
NOTICE
ALERT messages communicate critical system states to the user. They require
immediate action and remain active until the critical state changes back to normal.
1. A red exclamation mark, visible on the homescreen, the monitor, EVF or SDI
overlays (if active), indicates available alert state messages.
2. On the homescreen, press the button with the exclamation mark (1) to access the
pending messages.
3. The icon will turn grey when the alert state is no longer valid.
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13.3Info screens
HOME > i
Pressing the [i] button opens the INFO list that offers access to detailed information /
subscreens:
Version info
•
System info
•
Maximum FPS info
•
CARD info
•
USB info
•
Network info
•
Lens info
•
Version info
Software: Shows the camera software version. The first two parts identify the SUP
version.
Revision: Detail info on software version.
FPGA: Firmware version of currently active FPGA (indicated by number in brackets).
MVF-1 software: Software version of MVF-1.
CCP-1 software: Software version of CCP-1 (only shown if connected).
Lens mount software: Software version of lens mount.
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System info
Time + Date: Current system time and date of camera.
Camera serial no.: Serial number of camera.
Operating hours: Total operational time of camera in hours:minutes.
Sensor temperature: Current temperature of image sensor.
Sensor temp. state: Rates the sensor temperature into the following states: OK,
Warning, Error.
Camera temp. state: Rates the camera temperature into the following states: OK,
Warning, Error.
Maximum FPS info
Sensor FPS: Maximum sensor fps with the current sensor setting of the camera.
Codec FPS: Maximum codec fps with the current codec setting of the camera.
Card FPS: Maximum sensor fps supported by this card with the current codec setting
of the camera.
NOTICE
The lowest value determines the maximum selectable fps value.
62Home screen
Card info
Shows info on the CFAST card.
CARD status: Status of CFAST card.
CARD model: Name of CFAST card model according to manufacturer.
CARD SN#: Serial number of CFAST card.
CARD FW version: Firmware version of CFAST card.
CARD size: Total storage size of card.
CARD clip count: Shows the current number of clips on the card (maximum: 400).
USB info
USB Status: Status of USB medium.
Storage free/total: Shows free and total available storage on USB medium in
megabyte.
Frame line files: Shows the number of frame line files on the USB medium, and the
maximum number of files recognizable by the camera.
License files: Shows the number of license files on the USB medium, and the
maximum number of files recognizable by the camera.
Look files: Shows the number of look files on the USB medium, and the maximum
number of files recognizable by the camera.
Setup files: Shows the number of user camera setup files on the USB medium, and
the maximum number of files recognizable by the camera.
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SUP files: Shows the number of SUP (software update package) files on the USB
medium, and the maximum number of files recognizable by the camera.
Network info
WiFi IP: IP address of the camera via WiFi.
LAN IP: IP address of the camera via Ethernet.
Web remote: URL address of the camera remote control website.
Lens info
Lens status: Status/type of lens connected to camera.
Model: Lens model name according to manufacturer.
#SN: Serial number of lens.
Focal length: Focal length of lens in mm. May change with a zoom lens.
Focus: Current focus distance value of lens according to user preference setting of
distance unit (metric/imperial), which can be changed with the FOCUS UNIT button on
the bottom of the screen.
Iris: Current iris value of lens.
64Home screen
User button info
Shows functions assigned to user buttons of camera body and MVF-1.
Export HW info file
HW info files may be required by camera service to get detailed info on the hardware
details of the camera and its components. After generation, the resulting file will be
exported to the USB medium.
Export logfiles
Logfiles help the camera service to analyze problems. Under normal circumstances,
logfile export is not required.
Export update logfiles
Similar to normal logfiles, update logfiles help the camera service to analyze problems
during the update process. Under normal circumstances, their export is not required.
Export user manual
This screen allows to export the camera quick guide and user manual in .pdf format to
the USB stick.
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13.4FPS settings
NOTICE
Always use CFast 2.0 cards with maximum write rates. 60-GB cards are slower
than 120-GB cards and may limit the fps (depending on the currently set codec).
The maximum possible frame rate may be limited by the set recording codec,
recording resolution and CFAST card model. See user manual appendix for a
detailed list of fps limits.
13.4.1 Setting/adding an FPS value
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FPS list
1. Via jogwheel (1), scroll to the required value.
2. Press the wheel (1) to activate the value.
If the value is not listed: Press ADD (2).
Note: ADD is disabled on reaching the maximum number of 16 list entries.
3. Upon pressing ADD, an editor opens.
4. Create a value with the jogwheel (1):
Scroll up or down to increase/decrease.
°
Press the wheel to select the next digit (2).
°
For the previous digit: Press ARROW (5).
°
To zero the decimals: Press the ZERO button (3).
°
5. Press ADD TO LIST (4) to save the changes. Cancel with BACK (6).
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13.4.2 Deleting an FPS value
1. Open the FPS list.
2. Press DELETE (1).
3. The list turns red.
4. Via jogwheel (1), select the obsolete entry.
5. Note: You cannot select a currently active value.
6. Press DELETE (2).
68Home screen
7. Press CONFIRM (1). Cancel with BACK.
8. The entry is deleted.
13.5TC settings
1. Press TC (1) on the home screen.
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2. Current timecode and project rate show up.
3. To change the active format: Press OPTIONS (2).
4. To change the project rate via the recording menu: Press PROJECT RATE (3).
5. Press EDIT (1) to change the current timecode value.
6. Note: EDIT (1) is available only when timecode is not in Regen mode.
Disable Regen via OPTIONS > Mode > Preset (2).
°
7. For TC = 00:00:00:00: Press RESET (3).
8. For TC = current system time: Press SET TO TIME (4).
9. Via jogwheel (1), you can change each value:
Scroll up or down to increase/decrease.
°
Press the wheel to select the next digit pair (5).
°
10. Press DONE (2) to save the changes. Cancel with BACK.
11. The Timecode editor closes.
12. If applicable: Press OPTIONS (1) to set/change the timecode modes or enable/
disable Regen:
70Home screen
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TC options
Run mode
Rec run: Timecode increases during recording only.
Free run: Timecode increases with every new frame. Note: Only possible if sensor fps= project fps. Otherwise, the camera temporarily switches to Rec run.
Mode
Note: You can edit timecode only in Preset mode. The Regen mode disables EDIT.
Preset: The camera uses its internal counter.
Regen: The correct timecode value is regenerated from the active Regen source.
Disables the timecode editor.
Regen source
Based on the timecode run mode, the camera determines the Regen source
automatically.
Free run regenerates timecode from the timecode input connector.
NOTICE
It is recommended to use LTC with a genlock signal to reduce the risk of timecode
drifts.
Genlock can either be a Black burst or Tri-level sync signal, or the timecode signal
itself. The genlock signal is used to tune the camera clock generator.
1. Make sure sensor fps equals project rate
2. Go to MENU>System>Sensor and set Genlock to the desired source.
3. Connect the genlock source to the camera.
4. If possible, keep genlock source connected to camera.
5. Otherwise, wait for at least 100 frames (about 5 seconds) for genlock signal to
tune the camera.
6. Then set MENU>System>Sensor>Genlock to Off and disconnect genlock
source from camera.
Rec run regenerates timecode from the active recording card by continuing
seamlessly from the last active value.
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Count mode
Sets the preference on how timecode is counted with non-integer project rates:
29.97p, 59.94p, 59.94.
Non-dropframe: Timecode increases with every frame without compensation, resulting
in a 1,001 count for 1,000 frames.
Dropframe: Timecode values are dropped with a defined pattern (frame counts 00 and
01 of every minute, except every 10th minute) to re-adjust for the drift. A semicolon
between timecode seconds and frames indicates active dropframe timecode.
TC Offset
Adds/substracts an offset to LTC input signals to compensate for timecode offsets in
external devices.
13.6SHUTTER settings
You can select your preferred shutter unit: Shutter angle converts exposure time into
the angle of a virtual rotating mirror shutter as in film cameras.
Note: A fixed angle creates varying exposure times with varying frame rates. You can
set angles from 5.0 to 356.0 degrees.
Exposure time shows the effective sensor exposure time. With varying frame rates, it
remains identical and can be set from 1/1 to 1/8000 seconds.
Note: Maximum exposure time with a given frame rate is 1/fps, with a limit of 1/1
seconds. For a constant exposure time over a range of used frame rates, set it to 1/
(highest used frame rate).
13.6.1 Selecting a SHUTTER unit
1. Press SHUTTER (1) to set the shutter unit:
A list opens (skip forward to "SHUTTER list").
2. Press the jogwheel (1) to open the SHUTTER list:
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SHUTTER list
1. Press Add (1)
2. Adjust exposure time.
3. Enter the exposure time by pressing the ADD TO LIST button.
4. Press SWITCH UNIT (2).
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5. Confirm with OK (1).
6. The camera returns to the home screen.
7. The shutter unit has changed (e.g., from time to angle).
Note: How to adjust the shutter for filming a monitor
1. Set unit to angle.
2. Go to SHUTTER > SELECT > ADD.
3. Select the third digit (single degrees).
4. Adjust the shutter value until the monitor image flickers the least.
5. Select the fourth digit (sub-degrees).
6. Fine-adjust the shutter value until there is no more flicker visible.
7. Add the shutter value to the list.
13.6.2 Setting/adding a SHUTTER value
1. Press SHUTTER (1) to set the shutter rate:
A list opens (skip forward to "SHUTTER list").
74Home screen
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2
1
2
3
4
5
6
SHUTTER list
1. Via jogwheel (1), scroll to the required value.
2. Press the wheel (1) to activate the value.
If the value is not listed: Press ADD (2).
Note: ADD is disabled on reaching the maximum number of 16 list entries.
3. Upon pressing ADD, an editor opens.
4. Create a value with the jogwheel (1):
Scroll up or down to increase/decrease.
°
Press the jogwheel to select the next digit (2).
°
For the previous digit: Press ARROW (5).
°
To zero the decimals: Press .0 (3).
°
5. Press ADD TO LIST (4) to save the changes. Cancel with BACK (6).
13.6.3 Deleting a SHUTTER value
The shutter value consists of either an angle or exposure time.
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1. Open the SHUTTER list (here: angle).
2. Press DELETE (1).
3. The list turns red.
4. Via jogwheel (1), select the obsolete entry.
5. Note: You cannot select a currently active value.
6. Press DELETE (2).
7. Press CONFIRM (1). Cancel with BACK.
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8. The entry is deleted.
13.7WB settings
13.7.1 Setting/adding a WB value
1. Press WB (1) on the home screen.
WB list
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2
3
1. Via jogwheel (1), scroll to the required value.
2. Press the wheel (1) to activate the value.
If the value is not listed: Press ADD (2).
Note: ADD is disabled on reaching the maximum number of 16 list entries.
3. Upon pressing ADD, an editor opens.
4. Create the WB and CC values with the jogwheel (1).
Scroll up or down to increase/decrease.
°
Press the jogwheel to select the next digit.
°
5. Press ADD TO LIST (2) to save the changes. Cancel with BACK.
13.7.2 Renaming a WB value
1. Open the WB list.
2. Via jogwheel (1), scroll to the required file.
3. Confirm by pressing the jogwheel.
4. Press RENAME (2).
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3
4
5
6
7
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5. An editor opens:
Aa (7) toggles between upper/lower case.
°
ERASE (3) deletes the selected character.
°
ARROW buttons move the cursor back (2) and forth (4).
°
6. Via jogwheel (1), select/confirm characters to form a name.
7. Press SAVE (5) when complete.
8. Note: Saving a file with an already existing name is not allowed.
9. You can also CLEAR (6) an entire string/name.
13.7.3 Deleting a WB value
1. Open the WB list.
2. Press DELETE (1).
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3. The list turns red.
4. Via jogwheel (1), select the obsolete entry.
5. Note: You cannot select a currently active value.
6. Press DELETE (2).
7. Press CONFIRM (1). Cancel with BACK.
8. The entry is deleted.
80Home screen
13.7.4 WB Options
Auto WB mode: Sets the calculation method of auto white balance. Matrix analyzes
the full image and uses the image part best suited for WB calculation, while Center
uses the image center area only.
WB tracking: Activates the automatic white balance tracking, where the white balance
value is continuously updated based on the image scene.
Note: WB tracking always uses Matrix mode for WB calculation.
13.8LOOK and gamma settings
ARRI 709: Renders the video image according to the ITU.R-BT709 standard, for most
accurate color reproduction on standard broadcast monitors.
Commercial: Renders the image brighter for smoother skin tones.
Landscape: Applies a steeper contrast curve to the image.
LCC 709: Low Contrast Curve look that keeps more details in highlights for color
correction purposes.
Vibrant: Boosts color saturation except for red and yellow (skintone protection).
ALEXA Classic 709: Matches the color reproduction of ALEXA Mini to the ARRI
ALEXA.
To create look files for the camera, download the free Mac OS utility ARRI Color Tool
from the ARRI website:
If the look is not listed: Press ADD (2). For details, see page 83.
°
Note: ADD is disabled on reaching the maximum number of list entries.
°
Cancel with BACK.
°
3. The required look is now active.
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13.8.2 Setting Gamma
1. Open the active look file.
2. Press SET GAMMA (1).
3. The gamma settings for the three different image paths appear.
4. Via jogwheel (1), select and confirm the required gamma for each image path.
Log C
Based on the Cineon format for output to film print or digital intermediate, this
logarithmic gamma requires color-grading in postproduction.
On standard broadcast monitors, LOG C images appear flat and desaturated. Proper
display, dailies and editing proxies require a conversion look-up table (LUT).
Create preview LUTs with the ARRI LUT Generator at www.arridigital.com.
LOOK
Applies a video display gamma to camera images. The default ARRI 709 look
complies with the ITU.R-BT709 standard for display on standard broadcast monitors.
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13.8.3 Adding a LOOK file
NOTICE
You can add look files either from the camera default look folder or via a USB
memory stick.
Look files are copied from the USB to the camera. If you remove the memory stick,
the installed look files remain accessible.
1. Save all look files to be added on a properly prepared USB memory stick, in the
folder /ARRI/A-MINI/LOOKFILES.
2. Open the media lid (1).
3. Connect the USB memory (3) to the camera (2).
HOME > LOOK > SET LOOK
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1. Open the list of installed looks.
2. Press ADD (1).
3. Note: ADD is inactive/gray if the maximum number of looks (20) is installed.
4. A list of default look files appears.
5. If sufficiently licensed: Press USB (2) or DEFAULTS (3) to select a file source:
DEFAULTS: ARRI default look files delivered with the camera.
°
USB: User look files on the camera USB stick.
°
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6. Via jogwheel (1), scroll to the required file.
7. Confirm by pressing the jogwheel (1).
8. Note: Use unique file names to avoid possible overwritings. For details on file
naming, see page 89.
9. Repeat for other look files if required.
13.8.4 Deleting a LOOK file
NOTICE
User-defined look files are deleted irreversibly. For loss prevention and future reinstallation, always export user-defined look files to a USB memory stick before
deletion. Default looks are re-installable without prior export.
HOME > LOOK > SET LOOK
1. Open the list of installed looks.
2. Note: REC 709 is pre-installed and non-deletable.
3. Press DELETE (1).
4. The list turns red.
5. Via jogwheel (1), select the obsolete entry.
6. Press DELETE (2).
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7. Press CONFIRM (1). Cancel with BACK.
8. The entry is deleted.
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13.8.5 Exporting a LOOK file
1. Properly prepare a USB memory stick.
2. Open the media lid (1).
3. Connect the USB memory (3) to the camera (2).
HOME > LOOK > SET LOOK
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1. Open the list of installed looks.
2. Press EXPORT (1).
3. An export list appears.
4. Via jogwheel (1), scroll to the file for export.
5. Confirm by pressing the jogwheel (1).
6. Note: Rename a file to avoid possible overwritings. For file naming, see
page 89.
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13.8.6 Duplicating/renaming a LOOK file
NOTICE
By duplication you can create a new look based on an existing one. For a new look
from scratch, duplicate REC 709 and edit its parameters. Except for REC 709, you
can rename all look files.
HOME > LOOK > SET LOOK
1. Open the list of installed looks.
2. Via jogwheel (1), scroll to the required file.
3. Confirm by pressing the jogwheel.
4. Press DUPLICATE (2) and/or RENAME (3).
5. An editor opens:
6. Via jogwheel (1), select/confirm characters to form a name.
7. Press SAVE (5) when complete.
8. Note: Saving a file with an already existing name is not allowed.
9. You can also CLEAR (6) an entire string/name.
Aa (7) toggles between upper/lower case.
°
ERASE (3) deletes the selected character.
°
ARROW buttons move the cursor back (2) and forth (4).
°
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13.8.7 LOOK parameters
NOTICE
A look file contains different parameters for image alterings.
User-defined looks may contain a non-editable 3D LUT instead of video
parameters.
HOME > LOOK > SET LOOK > SET PARAM.
Slope, Offset, Power, Saturation affect ASC CDL images under Log C.
Black Gamma, Gamma, Knee, Saturation, Saturation by Hue affect VIDEO images.
ASC CDL parameters are applied to the image before VIDEO parameters. Please
refer to the ARRI white paper on color parameters (for download at www.arri.com).
Note: All look transforms, including ASC CDL, are applied in the conversion from Log
C to Video color space. When you choose Log C as gamma for an image path, the
clean Log C image is routed to this path.
13.8.7.1 ASC CDL Transforms
The American Society of Cinematographers has specified a set of transforms that
have become a standard in postproduction. They are determined by slope, offset,
power and saturation (applied in that order).
All these parameters are based on simple color manipulations (multiplying with a
factor, adding an offset, raising to an exponent). Noted as "Color Decision List" (ASC
CDL), they offer an exchange format for basic look transformations between color
correction systems and editing tools by different manufacturers.
The ALEXA Mini image processing applies ASC CDL transforms to the Log C
encoded image. This allows manipulations such as exposure correction or bringing
down highlights, before the picture is converted to the display color space with its
steeper contrast curve.
Slope
The linear section of the Log C curve is equivalent to the gamma of a negative film
stock. The Log C curve has a default gamma of approximately 0.51 (adjustable via
slope parameter).
A slope value of 1.2 will have a similar effect as using negative stock with a gamma of
0.6 (= 1.2 * 0.5). A value below 1.0 will lower the gamma accordingly.
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Offset
This most intuitive CDL parameter has a similar effect as increasing the exposure
index on the camera. If you are familiar with the motion picture print film process, it's
the same as printer lights.
Power
Via power you can adjust the mid tones, similar to the Gamma parameter in video
color grading. A power value below 1.0 will increase, a value above 1.0 willl decrease
the mid tone brightness.
(Log) Saturation
This parameter affects the saturation of all color components in the Log domain. A
value of 1.0 represents the default saturation.
13.8.7.2 3D LUT and video look parameters
Via 3D LUT (lookup table), the camera generates a Rec 709 video image from Log
C data. Next to the ASC CDL parameters, which apply to the Log C image, the
camera also offers a set of video look parameters (VLP) for tone mapping and color
transformation of the rendering 3D LUT.
VLPs determine knee, black gamma and the gamma of the tone map curve, which
qualify the contrast of the output image. They also include values for saturation and
the saturation by hue for six color vectors (green, yellow, red, magenta, blue, cyan).
Knee
The knee parameter controls the transition of mid-tones into highlights. Values below
0.5 (default) produce harder highlights, higher values soften them. Knee is applied to
all channels equally (master control). It has no effect on the mid gray level.
Black gamma
The black gamma controls the shadow detail in the image. Values below 0.5 (default)
bring down, higher values brighten the blacks. Black gamma is applied as master
control. It only affects the mid gray level for very high values.
Gamma
This setting can be used to brighten or darken the mid tones, while leaving the black
and white level unchanged. Values below 1.0 (default) will darken; higher values will
brighten the image.
(Video) Saturation
The VLP set also includes a saturation control, with a similar effect as the ASC
saturation control. A value of 1.0 represents the default saturation.
Saturation by Hue
This parameter set allows you to control the saturation for six color vectors (red,
yellow, green, cyan, blue, magenta) independently.
13.8.8 LOOK editing
Editing will overwrite and existing look file and its values. To prevent this, duplicate
the look first, and then edit the duplicate. REC 709 cannot be edited.
NOTICE
92Home screen
1
HOME > LOOK
1. On home screen, press LOOK (see above)
2. Press LOOK PARAM. (1).
3. All look parameters appear.
4. For details, see page 90.
5. Look files with a 3D-LUT offer no VIDEO parameters.
6. Press EDIT (1).
Home screen93
1
7. A warning on file overwriting appears.
8. Press OK (1) to close the warning.
9. An editor opens.
10. Via jogwheel (1), scroll to the required parameter.
11. A black frame (2) marks your selection.
12. Pressing the lower right screen button (3) toggles the edit step size between
0.001, 0.01, and 0.1.
13. Press the jogwheel (1) to start editing the selected value.
94Home screen
1
14. A yellow-on-black font (3) marks the edit mode.
15. Confirm the new value by pressing the jogwheel (1).
16. Edit more parameters if required.
17. After editing: Press SAVE (2).
18. To revert all changes: Press UNDO CHANGES (4).
19. Note: Recording while editing will save all changes automatically.
13.9EI settings
1. Press EI (1) on the home screen.
2. Select a value with the jogwheel (1):
Scroll up or down to increase/decrease.
°
Press the jogwheel (1) to confirm. Cancel with BACK.
°
Home screen95
In this screen, the ND filter can be set via screen buttons. No confirmation necessary.
96Home screen
13.9.1 EI technical details
The Exposure Index (EI) is the applied sensitivity of the camera. The ALEXA Mini
has a base sensitivity of 800 ASA. This means that the dynamic range is almost
evenly distributed above and below neutral gray with low noise in the shadows and
clean, smooth clipping behavior in the highlights. Due to its high dynamic range, the
ALEXA Mini's sensitivity can be set from 160 to 3200 ASA in steps of 1/3 stops while
maintaining high image quality:
Applying the exposure indexes at the extremes of the range will nonetheless have an
influence on the images.
At low exposure indexes, such as 160 ASA, the dynamic range below neutral gray
increases, reducing noise even further. At the same time, the dynamic range above
neutral gray is slightly reduced.
Highlight clipping itself is not influenced by this, but the shoulder of the gamma
curve will get slightly steeper, reducing the smoothness of the change from almost
overexposed to overexposed.
At high exposure indexes, such as 1600 ASA, the images behave in the opposite way.
Noise is increased, which makes it important to judge shadow detail, while there will
be even more headroom in the highlights:
Camera menu97
14Camera menu
The camera menu on the monitor gives access to all camera functionalities not on the
home screen.
1. To access the menu: Press the jogwheel (1) while on the home screen.
1. Via jogwheel (1), scroll up or down to the required entry (3).
2. To enter: Press the jogwheel (1).
3. Entries with an arrow navigate to a lower menu level.
To navigate deeper: Press the jogwheel (1).
°
To return to a higher menu: Press BACK (4).
°
4. Entries with a value allow direct editing.
To edit a value: Turn the jogwheel (1).
°
To confirm and end editing: Press the jogwheel (1).
°
To cancel editing: Press BACK (4).
°
5. To leave the menu: Press HOME (2).
98MENU > Recording
15MENU > Recording
15.1Recording Codec
MENU > Recording > Recording codec
Allows you to select one of the following recording codecs:
Recording codec
ProRes 422 LT
ProRes 422
ProRes 422 HQ
ProRes 4444
ProRes 4444 XQ
ARRIRAW*
* Requires ARRIRAW license. **24 fps, 1920x1080
Note: When the recording codec family is changed, the camera has to perfom a
partial software reload.
A popup shows the settings that are affected by the reload and might not be available
in the new mode. After confirming the popup, the software is reloaded.
15.1.1 ARRIRAW
Color coding
10 bit YCbCr
10 bit YCbCr
10 bit YCbCr
12 bit RGB
12 bit RGB
Bit rate **
90 Mb/s
125 Mb/s
185 Mb/s
280 Mb/s
420 Mb/s
ARRIRAW data delivers unencrypted, uncompressed and uncompromised image
quality from an ALEXA camera. It offers the highest achievable resolution, the
camera´s natural color response and great exposure latitude as uncompressed
and unprocessed sensor data. ARRIRAW images have only one channel. A color
reconstruction algorithm calculates the missing components of each pixel based on
the type and position of the array of colored filters (Bayer pattern) on the camera
sensor.
ARRIRAW de-bayering is available through the ARRIRAW SDK or custom processing,
which is implemented in most of the major post production tools for dailies processing
and mastering.
ARRIRAW is used for cinema production, visual effects and high quality TV. It is the
best format for creative color correction and visual effects work.
MENU > Recording99
The frames are recorded in an MXF (Material eXchange Format) container. An
MXF container file can "wrap" different types of video and audio material along with
associated metadata. The internal stucture of MXF files is defined by the Operational
Patterns (OP).
The OP1a MXF format packages picture, sound, and metadata in a single file.
•
The OP1a is a streaming format, which means that even incomplete files can
•
be played.
The OP-Atom MXF format places picture and sound into individual MXF files.
•
Audio is written after video.
The OP1a MXF files are the primary acquisition and archiving format for many
•
broadcasters.
15.2Resolution
MENU > Recording > Resolution
Toggles between the following recording resolutions:
ProRes:
S16 HD: records images in 1920x1080 resolution
•
HD: records images in 1920x1080 resolution.
•
HD Ana.*: records images in 1920x1080 resolution.
•
2K: records images in 2048x1152 resolution.
•
2.39:1 2K Ana.*: records images in 2048x858 resolution.
•
3.2K: records images in 3200x1800 resolution.
•
4K UHD: records images in 3840x2160 resolution.
•
4:3 2.8K*: records images in 2944x2160 resolution.
•
ARRIRAW**:
2.8K: records images in 2880x1620 resolution.
•
Open Gate 3.4K*: records images in 3424x2202 resolution.
•
4:3 2.8K (OG 3.4K)*: records images in 3424x2202 resolution.
•
16:9 HD Ana. (OG 3.4K)*: records images in 3424x2202 resolution.
•
2.39:1 2K Ana. (OG 3.4K)*: records images in 3424x2202 resolution.
Note: Changing between resolutions may require a software reload. The reload must
be confirmed by the user before it is performed.
A popup shows the settings that are affected by the reload and which might not be
available in the new mode. After confirming the popup, the software is reloaded.
S16 HD Resolution
In ProRes codec, the camera can be changed to a recording resolution of S16 HD.
This resolution records 1920x1080 image from a 1600x900 sensor pixel count, which
allows for using S16 PL mount lenses on the camera.
15.2.1 4:3 Recording
With the additional 4:3 license, the ALEXA Mini allows to record with other sensor
aspect ratios than 16:9.
The additional recording resolutions are:
100MENU > Recording
ProResHD Ana.
2.39:1 2K Ana.
4:3 2.8K
ARRIRAW*Open Gate 3.4K
4:3 2.8K (OG 3.4K)
16:9 HD Ana. (OG 3.4K)
2.39:1 2K Ana. (OG 3.4K)
* Requires additional ARRIRAW license.
The recording resolutions with Ana. in their name are intended for recording with
anamorphic lenses with a squeeze factor of 2.0. The respective ProRes resolutions
perform a de-squeeze on the recorded material. The respective ARRIRAW resolutions
are recorded as-is, only anamorphic de-squeeze is enabled per default on the viewing
paths.
Note: While the image resolution for 4:3 2.8K is 2880 x 2160 the recorded resolution
is 2944 x 2160. The additional border is due to the ALEXA Mini´s ProRes encoder that
handles multiples of 128 more efficiently. The remaining 32-pixel boundary left and
right to the image is filled with black pixels.
15.3Project settings
15.3.1 Project rate
MENU > Recording > Project settings > Project rate
Offers the following options for setting a timecode time base and playback frame rate:
Project rate
23.976p
24p
25p
29.97p
30p
Scan format
Progressive
Progressive
Progressive
Progressive
Progressive
Sensor real-time recording
23.976 fps
24 fps
25 fps
29.97 fps
30 fps
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