Camera Type | 35 format film-style digital camera with an electronic viewfinder, a 16:9, 6:5, 4:3 or Open Gate switchable active sensor area, built-in support for the ARRI Wireless Remote System and the cmotion cvolution lens control system, built-in filter holder, Lens Data System, integrated shoulder arch and receptacles for 15 mm lightweight rods |
Sensor | 35 format ALEV III CMOS sensor with Bayer pattern color filter array. |
Photo Sites | Sensor Mode 16:9 2880 x 1620 used for 16:9 ARRIRAW 2.8K 3168 x 1782 used for 16:9 ARRIRAW 3.2K 2880 x 1620 down sampled to 1920 x 1080 16:9 ProRes HD 2880 x 1620 down sampled to 2048 x 1152 for 16:9 ProRes 2K 3200 x 1800 used for 16:9 ProRes 3.2K 3200 x 1800 up sampled to 3840 x 2160 for 16:9 ProRes 4K UHD Sensor Mode 6:5 2578 x 2160 used for 6:5 ARRIRAW 2.6K 2560 x 2146 down sampled to 2048 x 858 for 6:5 ProRes 2K Anamorphic 2560 x 2146 re-sampled to 4096 x 1716 for 6:5 ProRes 4K Anamorphic Sensor Mode 4:3 2880 x 2160 used for 4:3 ARRIRAW 2.8K 2880 x 2160 used for 4:3 ProRes 2.8K Sensor Mode Open Gate 3424 x 2202 used for Open Gate ARRIRAW 3.4K 3424 x 2202 used for Open Gate ProRes 3.4K 3414 x 2198 up sampled to 4096 x 2636 for Open Gate ProRes 4K Cine |
Operating Modes | 16:9, 6:5, 4:3 or Open Gate sensor modes. Switching takes approx. 60 seconds. All sensor modes available in ARRIRAW and ProRes. |
Frame Rates | 16:9 0.75 - 120 fps 6:5 0.75 - 96 fps 4:3 0.75 - 96 fps Open Gate 0.75 - 90 fps All speeds adjustable with 1/1000 fps precision. Some limitations based on recording media or recording format apply. For a detailed table of frame rates click here |
Recording Media | SxS PRO or SxS PRO+ cards (requires SxS Adapter 2) CFast 2.0 cards (requires CFast 2.0 Adapter 2) XR Capture Drives (requires XR Adapter) SXR Capture Drives (requires SXR Adapter) Note: XR Capture Drive Docks require Codex Production Suite to read XR Capture Drives recorded with ALEXA SXT. |
Supported Media | SxS PRO 64 GB (SBP-64A) SxS PRO+ 64 GB (SBP-64B & SBP-64C) SxS PRO+ 128 GB (SBP-128B & SBP-128C) LEXAR 3600x CFast 2.0 cards 256 GB XR Capture Drives 512 GB SXR Capture Drives 1 TB SXR Capture Drives 2 TB |
Monitor Outputs | 4x MON OUT BNC connector for uncompressed 1.5 G HD-SDI video: 1920 x 1080 (16:9), 4:2:2 YCbCr; legal range HD video at 23.976, 24, 25, 29.97, or 30 fps. MON OUT 1b is a clone of MON OUT 1a. Embedded audio, time code, metadata and recording flag. |
Image Processing | 16 bit linear internal image processing in full ALEXA Wide Gamut/Log C color space. Target output color spaces: Log C, Rec 709 or Rec 2020. An ARRI Look File (ALF-2) containing the name of the target color space, CDL values and a 3D LUT can be applied to ProRes or MON OUT images and will be saved in metadata. Optional horizontal image mirroring. |
Synchronization | Master/Slave mode for precision sync of settings, sensor, processing, HD-SDI outputs and ARRIRAW or ProRes recording for 3D applications. PHASE user button for shifting camera phase to move phase artifacts out of frame, i.e. when shooting a CRT monitor or rear screen projector (works in Rec Run TC mode). |
Playback | Playback of ARRIRAW or ProRes recorded material visible on EVF-1 and MON OUT. Playback audio available over headphone jack and embedded in the MON OUT signal. |
Audio | 1x XLR 5 pin AUDIO IN for 2 channel, line level, balanced audio. 24 bit/48 kHz A/D conversion. Uncompressed PCM audio recording to ARRIRAW, ProRes and embedded in all HD-SDI outputs. Only available with same project/sensor speed at 23.976, 24, 25, 29.97 and 30 fps. Max of 2.5 dBm output from AUDIO OUT headphones connector. |
Connectors | 1x media slot 4x BNC monitoring out HD-SDI, 1.5G MON OUT 1x XLR 5-pin analog audio in AUDIO IN 1x BNC return video in HD-SDI, 1.5G RET/SYNC IN 1x LEMO 16-pin external accessory interface EXT 1x Fischer 2-pin 24 V power in BAT 3x Fischer 3-pin 24 V remote start and accessory power out RS 1x LEMO 2-pin 12 V accessory power out 12 V 1x LEMO 5-pin timecode in/out TC 1x TRS 3.5 mm headphone mini stereo jack AUDIO OUT 1x custom LEMO 16-pin electronic viewfinder EVF 1x custom LEMO 10-pin Ethernet with 24 V power ETHERNET 1x Fischer 5-pin Lens Data Display LDD 2x Fischer 5-pin Lens Control System LCS 1x Fischer 12-pin for CLM-2, CLM-3, CLM-4 or later IRIS 1x Fischer 12-pin for CLM-2, CLM-3, CLM-4 or later FOCUS 1x Fischer 12-pin for CLM-2, CLM-3, CLM-4 or later ZOOM BNC connectors are designed for fast exchange without camera disassembly. These connectors require a special tool (ALEXA Plus BNC Removal Tool, K5.72915.0). |
SD Card | For importing and storing of ARRI Look Files, camera set up files, frame line files and user pixel masks and custom lens tables for the Lens Data Archive (LDA). Stores frame grabs in ARRIRAW (.ari, 12 bit), TIFF (.tif, 16 bit), DPX (.dpx, 10 bit) or JPEG (.jpg, 8 bit) format. Stores log files. Also used for installing Software Update Packets (SUPs). |
Upgrades | The Storage Interface Module can be exchanged for future storage modules. The Electronics Interface Module (available as either regular ALEXA or ALEXA Plus versions) can be exchanged for future control electronics. An easily exchangeable lens mount allows other lenses beyond LDS PL mount lenses to be used. Simple camera software updates via free of charge Software Update Packets (SUPs). |
Software Tools (apps) | ARRIRAW Converter (ARC) ARRI Color Tool ARRI Meta Extract |
Software Tools (online) | ALEXA Camera Simulator Lens Illumination Guide ARRI Frame Line Composer (AFC) LUT Generator ARRI Formats & Datarate Calculator |
Note: Technical data based on SXT Software Update Packet SUP 1.0. All data subject to change without notice. |
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