Arri Alexa Mini LF

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Combining the compact size and low weight of the popular ALEXA Mini with the large-format ALEXA LF sensor, ALEXA Mini LF brings exciting new creative possibilities to Arri's large-format camera system.

Sensor Type
Large Format ARRI ALEV III (A2X) CMOS sensor with Bayer pattern colour filter array

Sensor Maximum Resolution and Size
4448 x 3096
36.70 x 25.54 mm / 1.444 x 1.005"
⌀ 44.71 mm / 1.760"

Sensor Frame Rates
0.75 - 150 fps

Sensor Active Image Area (photosites) 
LF Open Gate ProRes 4.5K: 4448 x 3096
LF Open Gate ARRIRAW 4.5K: 4448 x 3096
LF 16:9 ProRes HD: 3840 x 2160
LF 16:9 ProRes 2K: 3840 x 2160
LF 16:9 ProRes UHD: 3840 x 2160
LF 16:9 ARRIRAW UHD: 3840 x 2160
LF 2.39:1 ProRes 4.5K: 4448 x 1856
LF 2.39:1 ARRIRAW 4.5K: 4448 x 1856

Sensor Active Image Area (dimensions)
LF Open Gate ProRes 4.5K: 36.70 x 25.54 mm / 1.445 x 1.006"
LF Open Gate ARRIRAW 4.5K: 36.70 x 25.54 mm / 1.445 x 1.006"
LF 16:9 ProRes HD: 31.68 x 17.82 mm / 1.247 x 0.702"
LF 16:9 ProRes 2K: 31.68 x 17.82 mm / 1.247 x 0.702"
LF 16:9 ProRes UHD: 31.68 x 17.82 mm / 1.247 x 0.702"
LF 16:9 ARRIRAW UHD: 31.68 x 17.82 mm / 1.247 x 0.702"
LF 2.39:1 ProRes 4.5K: 36.70 x 15.31 mm / 1.445 x 0.603"
LF 2.39:1 ARRIRAW 4.5K: 36.70 x 15.31 mm / 1.445 x 0.603"

Recording File Container Size (pixel)
LF Open Gate ProRes 4.5K: 4480 x 3096
LF Open Gate ARRIRAW 4.5K: 4448 x 3096
LF 16:9 ProRes HD: 1920 x 1080
LF 16:9 ProRes 2K: 2048 x 1152
LF 16:9 ProRes UHD: 3840 x 2160
LF 16:9 ARRIRAW UHD: 3840 x 2160
LF 2.39:1 ProRes 4.5K: 4480 x 1856
LF 2.39:1 ARRIRAW 4.5K: 4448 x 1856

Exposure Latitude
14+ stops over the entire sensitivity range from EI 160 to EI 3200 as measured with the ARRI Dynamic Range Test Chart (DRTC-1)

Exposure Index
Adjustable from EI 160-3200 in 1/3 stops
EI 800 base sensitivity

Shutter
Electronic shutter, 5.0°- 358°

Recording Formats
ARRIRAW (.ari)
Apple ProRes 4444 XQ
Apple ProRes 4444
Apple ProRes 422 HQ
Apple ProRes 422

Recording Media
SXR Capture Drives
SxS PRO+ Cards

Recording Frame Rates
LF Open Gate ProRes 4.5K: 0.75 - 60 fps
LF Open Gate ARRIRAW 4.5K: 0.75 - 90 fps
LF 16:9 ProRes HD: 0.75 - 60 fps
LF 16:9 ProRes 2K: 0.75 - 60 fps
LF 16:9 ProRes UHD: 0.75 - 60 fps
LF 16:9 ARRIRAW UHD: 0.75 - 90 fps
LF 2.39:1 ProRes 4.5K: 0.75 - 100 fps
LF 2.39:1 ARRIRAW 4.5K: 0.75 - 150 fps

Recording Modes
Standard real-time recording
No Pre-recording
No Intervalometer

Viewfinder Type
Electronic Viewfinder EVF-1 with 235 eyepiece 
Electronic Viewfinder EVF-2 with ARRICAM eyepiece

Viewfinder Diopter
Adjustable from -5 to +5 diopters

Color Output
Rec 709
Rec 2020
Log C
Custom Look (ARRI Look File ALF-2)

Look Control
Import of custom 3D LUT
ASC CDL parameters (slope, offset, power, saturation)

White Balance
Manual and auto white balance, adjustable from 2000K to 11000K in 100K steps
Color correction adjustable range from -12 to +12 CC
1 CC corresponds to 035 Kodak CC values or 1/8 Rosco values

Filters
Manual behind the lens FSND filters: Optical Clear, 0.3, 0.6, 0.9, 1.2, 1.5, 1.8, 2.1, 2.4
Fixed optical low pass, UV, IR filter

Image Outputs
1x proprietary signal output for EVF-1/EVF-2 viewfinder
4x MON OUT: 1,5G (SMPTE ST292-1) and 6G (SMPTE ST2081-10)
uncompressed HD video with embedded audio and metadata

Lens Squeeze Factors
1.00
1.25
1.30
1.50
1.65
1.80
2.00

Exposure and Focus Tools
False Color
Peaking
Zoom

Audio Input
1x XLR 5pin balanced stereo line in
(Line input max. level +24dBu correlating to 0dBFS)

Audio Output
3,5mm stereo headphone jack
SDI (embedded)

Audio Recording
2 channel linear PCM, 24 bit 48 kHz

Remote Control Options
Web-based remote control from phones, tablets and laptops via WiFi & Ethernet
WCU-4 hand-unit with control over lens motors and operational parameters via built-in white radio
Remote Control Unit RCU-4 via Ethernet

Interfaces
1x LEMO 5pin LTC Timecode In/Out
1x BNC SDI Return In
1x LEMO 16pin EXT for accessories and sync
1x LEMO 10pin Ethernet for remote control and sync
1x SD Card (for user setups, look files etc)
3x Fischer 12pin connectors for CLM lens motors
2x Fischer 5pin LCS Lens Control System connectors for hand units

Wireless Interfaces
Built-in WiFi module (IEEE 802.11b/g)
Built-in White Radio for ARRI lens and camera remote control
Built-in Wireless Video System: 1920 x 1080, range 600m (2,000 ft) line of sight, OFDM (Orthogonal Frequency-Division Multiplexing) Bandwidth 40MHz, latency <1ms

Lens Mounts
LPL lens mount
PL lens mount

Flange Focal Depth
LPL mount: 44 mm
PL mount: 52 mm

Power Input
1x Fischer 2pin BAT connector (18.5-34 V DC)
1x On-board battery interface (19.5-34 V DC)

Power Consumption
120 W(recording ProRes 4444 at 24 fps in LF 16:9 sensor mode onto an SxS PRO+ 256 GB card with EVF-1 and wireless video on but without accessories)ca.
160 W(recording ARRIRAW at 90 fps in LF Open Gate sensor mode onto an SXRCapture Drive 2 TB with EVF-1 and wireless video on but without accessories)

Power Outputs
4x Fischer 3pin 24V RS
1x LEMO 2pin 12V

Weight
∼7.8 kg / ∼17.2 lbs
(camera body with LPL lens mount)

Measurements (HxWxL)
158 x 201 x 351 mm / 6.22 x 7.91 x 14.33"
(camera body with LPL lens mount)