Alexa LF

Highlights

Large Format ARRI ALEV III (A2X) CMOS sensor with Bayer pattern color filter array

Sensor Size   36.70 x 25.54 mm / 1.444 x 1.005″   – ⌀ 44.71 mm / 1.760″
Sensor Frame Rates – 0.75 – 150fps
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
Recording File Image Content (pixel)
LF Open Gate ProRes 4.5K: 4448 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: 4448 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
Electronic shutter, 5.0°- 358°
Viewfinder Diopter
Adjustable from -5 to +5 diopters
Color Output
Rec 709
Rec 2020
Log C
Custom Look (ARRI Look File ALF-2)
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
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
Lens Mounts
LPL mount
PL mount
Flange Focal Depth
LPL mount: 44 mm
PL mount: 52 mm
Weight ~ 7.8 kg / ~ 17.2 lbs

 

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Descrição

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

Dimensions:


Weight:

Alexa LF