Description
A 35 format film-style digital camera with an electronic viewfinder, 16:9 active sensor area and built-in Lens Data System. Can record QuickTime ProRes 4444, ProRes 422 (HQ), ProRes 422, ProRes 422 (LT) and ProRes 422 (Proxy) files onto in-camera SxS PRO cards. Outputs HD-SDI or ARRIRAW T-link on BNC connectors. Frame rate: 0.75 to 60 fps (0.75 – 120 fps up to ProRes 422 HQ with High Speed license key). Exposure through electronic rolling shutter: 5.0° – 358.0°. Built-in real-time wireless lens control and REC support with the ARRI Wireless Remote System (WRS). One extra MON OUT and one extra RS socket, built-in 3D lens synchronization, motion sensors and quick switch BNC connectors.
The ALEXA Plus adds integrated wireless remote control, the ARRI Lens Data System (LDS), additional outputs, lens synchronization for 3D, and built-in position and motion sensors. It shares ALEXA’s image performance, simplicity of operation, reliability in extreme environments and versatility of workflow, and is available either as part of a complete camera package or as an upgrade for the original ALEXA.
An advanced electronics side cover permits real-time wired or wireless remote control of camera REC/STOP and lens functions like focus and aperture, using either ARRI hand controllers such as the Wireless Compact Unit (WCU-3) or cmotion’s modular cvolution system.
The lens mount of the Plus model incorporates LDS contacts, allowing lens data and depth of field to be displayed in the viewfinder or on monitors, and making speed/iris ramps easier. Lens metadata can be recorded using ProRes, HD-SDI or ARRIRAW.
Technical Specifications
[current firmware version on camera]: 11.1:31779
Camera Type
s35mm format film-style digital camera with electronic viewfinder, integrated shoulder arch, built-in support for the ARRI Wireless Remote System (WRS), cmotion cvolution lens control system and ARRI Lens Data System (LDS).
Sensor
35 format ALEV III CMOS with Dual Gain Architecture (DGA) and Bayer pattern color filter array.
Photosites
2880 x 1620 for ARRIRAW, 2880 x 1620 down sampled to 1920 x 1080 for HD video and ProRes
Operating Modes
Regular or High Speed mode. High Speed mode requires license purchase. Switching takes approximately 40 seconds.
Frame Rates
ProRes 422 (Proxy), 422 (LT), 422 and 422 (HQ): 0.75 – 60 fps
ProRes 422 (Proxy), 422 (LT), 422 and 422 (HQ) with High Speed license: 0.75 – 120 fps
Prores 4444 with 32 GB SxS PRO cards: 0.75 – 40 fps
ProRes 4444 with 64 GB SxS PRO cards, SUP 5.0 or later: 0.75 – 60 fps
DNxHD 145 and 220x: 0.75 – 60 fps
DNxHD 145 and 220x with High Speed license: 0.75 – 120 fps
HD-SDI: 0.75 – 60 fps
ARRIRAW SUP 5.0 or later: 0.75 – 60 fps
All speeds adjustable with 1/1000 fps precision
Shutter
Electronic rolling shutter, 0.75 – 60 fps: 5.0º – 358.0º, 60 – 120 fps: 356º. Shutter angle setting precision: 1/10 degree.
Exposure Latitude
14 stops for all sensitivity settings from EI 160 to EI 3200, as measured with the ARRI Dynamic Range Test Chart (DRTC)
Exposure Index
EI 160 (+5.0 / -9.0), EI 200 (+5.3 / -8.7), EI 400 (+6.3 / -7.7), EI 800 (+7.4 / -6.6), EI 1600 (+8.4 / -5.6), EI3200 (+9.4 / -4.6)
Values behind the exposure index are the number of stops above and below 18% grey. These values are for Log C. Rec 709 and DCI P3 are the same except for 0.5 stops fewer in the low end at EI 160, 0.4 stops fewer in the low end at EI 200 and 0.2 stops fewer in the low end at EI 400.
White Balance
Separate white balance (red/blue) and color correction (green/magenta) adjustment through Auto or manual setting. Red/blue: 2000 to 11000 Kelvin, adjustable in 100 K steps, with presets of 3200 (tungsten), 4300 (fluorescent), 5600 (daylight) and 7000 (daylight cool). Green/magenta: -8 to +8 color correction (CC), 1 CC = 035 Kodak CC values or 1/8 Rosco values.
Sound Level
Under 20 db(A) @ 24 fps and ≤ +30° Celsius (≤ +86° Fahrenheit) with lens attached and fan mode set to ‘Regular’, measured 1 m/3 feet in front of the lens. Silent operation at higher temperatures possible with fan mode set to ‘Rec low’.
Power In
Three inputs: BAT connector, battery adapter back and battery adapter top. All accept 10.5 to 34 V DC. 85 W power draw for camera and EVF-1 in typical use recording 24 fps to SxS PRO cards, without accessories.
Power Out
12V connector: limited to 12 V, up to 2.2A. RS, EXT and ETHERNET: input below 24V is regulated up to 24V, above 24V: input = output voltage. Both RS and EXT connectors combined: up to 2.2A. ETHERNET: up to 1.2A. Maximum power draw is also limited by the power source.
Weight
ALEXA Plus camera body + SxS Module: 7.0 Kg/15.4 lb ALEXA Plus camera body + SxS Module + EVF-1 + Viewfinder Mounting Bracket VMB-2 + viewfinder cable + Center Camera Handle CCH-1: 8.4 Kg/18.5 lb
Dimensions
Length: 332 mm/12.95”, width: 175 mm/6.89”, height: 158 mm/6.22”
Environmental
-20° C to +45° C (-4° F to +113° F) @ 95% humidity max, non condensing. Splash and dust proof through sealed electronics. System cooling through radiator/single fan.
Lens Mount
ARRI Exchangeable Lens Mount (ELM); ships with Lens Adapter PL Mount with LDS contacts, 54 mm stainless steel PL mount, Super 35 centered
Flange Focal Depth
52.00 mm nominal
Viewfinder
Low latency (1 frame delay) electronic color viewfinder ARRI EVF-1 with 1280 x 784 F-LCOS micro display (image: 1280 x 720, status bars: 1280 x 32 above and 1280 x 32 below image) and ARRI LED illumination, both temperature controlled. Image can be flipped for use of viewfinder on camera left or right. Viewfinder Mounting Bracket allows movement of viewfinder forward/backwards, left/right, up/down, 360 degree rotation and placement on camera left or right. EVF-1 controls: viewfinder and basic camera settings, ZOOM button (2.25x pixel to pixel magnification), EXP button (false color exposure check) and jog wheel.
Assistive Displays
For EVF-1 and MON OUT: frame lines, surround view, camera status, false color exposure check, peaking focus check, electronic level, compare stored image with live image, RETURN IN video and anamorphic de-squeeze. Anamorphic de-squeeze requires license purchase. MON OUT only: Reel & clip number.
Control
Camera right: main user interface with 3” transflective 400 x 240 pixel LCD color screen, illuminated buttons, button lock and jog wheel. Camera left: operator interface with illuminated buttons, button lock and card swap button.
In-camera Recording
Records Apple QuickTime/ProRes files or MXF/DNxHD files onto one or two (Dual Recording) SxS PRO cards. All codecs record legal range video with embedded audio, timecode and metadata.
Codec
QuickTime/ProRes 4444
Compression
‘5:1
Bit Rate in Mb/s at 30 fps
330
Bit Depth
12
Color Coding
4:4:4 RGB
Application:
High quality television or cinema applications requiring colorcorrection and/or compositing.
Codec
QuickTime/ProRes 422 (HQ)
Compression
‘8:1
Bit Rate in Mb/s at 30 fps:
220
Bit Depth
10
Color Coding
4:2:2 YCbCr
Recording Outputs
2x 1.5G or 3G REC OUT BNC connectors for ARRIRAW or HD-SDI video. Both with embedded audio, timecode, metadata and optional recording flag.
ARRIRAW
2880 x 1620, uncompressed 12 bit log without white balance or exposure index processing applied. Requires an ARRIRAW T-Link certified recorder.
HD-SDI video
uncompressed 1920 x 1080 4:4:4 RGB or 4:2:2 YCbCr; both legal or extended range. Recording frame rates other than HD standard (23.976, 24, 25, 29.97, 30, 50, 59.94, 60 fps) requires a recorder with Variflag support.
Monitor Output
1x MON OUT BNC connector for uncompressed 1.5 G HD-SDI video: 1920 x 1080, 4:2:2 YCbCr; legal range.
Image Processing 16 bit linear internal image processing. Target color spaces for SxS, REC OUT and MON OUT: Log C (film matrix off), Log C (film matrix on), Rec 709 or DCI P3. For Rec 709 and DCI P3 a customized look can be applied during record and playback with ARRI Look Files. Optional horizontal image mirroring.
Synchronization
Master/Slave mode for precision sync of settings, sensor, processing, HD-SDI outputs and SxS recording for 3D applications.
Playback
QuickTime/ProRes and MXF/DNxHD clips can be played back from SxS PRO cards to the EVF-1, MON OUT and REC OUT. Playback audio is available embedded in the MON OUT and REC OUT signals and on the headphones jack.
Audio
1x XLR 5 pin AUDIO IN connector for 2 channel, line level balanced audio input, 24 bit/48 kHz A/D conversion, works at 23.976, 24, 25, 29.97 and 30 fps. Uncompressed audio is recorded into the QuickTime/ProRes file or MXF/DNxHD file and embedded in all HD-SDI outputs, including ARRIRAW T-Link. Max of 2.5 dBm output from AUDIO OUT headphones connector.
Connectors
Slots for SxS PRO cards (SxS), Camera body
2x BNC recording out HD-SDI, 1.5G/3G (REC-OUT 1/2), Camera body
1x BNC monitoring out HD-SDI, 1.5G (MON OUT), Camera body
1x XLR 5 pin audio in (AUDIO IN), Camera body
1x BNC return signal HD-SDI, 1.5G (RET/SYNC IN), Camera body
1x LEMO 16 pin external accessories (EXT), Camera body
1x Fischer 2 pin 24 V power in (BAT), Camera body
2x Fischer 3 pin 24 V remote start and accessory power out (RS), Camera body
1x LEMO 2 pin 12 V accessory power out (12 V), Camera body
1x LEMO 5 pin timecode in/out (TC), Camera body
1x TRS 3.5 mm headphone mini stereo jack out (AUDIO OUT), Camera body
2x LEMO 10 pin Ethernet with 24 V power (ETHERNET), Camera body
1x LEMO SMPTE 304M hybrid fiber connector (Optical Link), Camera body
1x LEMO SMPTE 304M hybrid fiber connector (Optical Link), Camera head
1x LEMO custom 16 pin electronic viewfinder (EVF), Camera head
1x Fischer 2 pin 24 V power in (BAT), Camera head
2x Fischer 3 pin 24 V remote start and accessory power out (RS), Camera head
1x LEMO 10 pin Ethernet with 24 V power (ETHERNET), Camera head
SD Card
For importing ARRI Look Files, camera set up files, frame line files, feature license keys and custom lens tables for the Lens Data Archive (LDA). Stores captured stills from the REC OUT image path in ARRIRAW (.ari, 12 bit), TIFF (.tif, 16 bit), DPX (.dpx, 10 bit) and JPEG (.jpg, 8 bit) format as well as logging files. Also used for software updates.
Upgrades
The Storage Interface Module (currently available for SxS PRO cards) 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. Exchangeable Lens Mount (ELM) allows other lenses beyond PL mount lenses to be used. Simple camera software updates. Licenses available for purchase: Anamorphic De-squeeze, High Speed, DNxHD.
Note:
All technical data based on Software Update Packet (SUP) 5.0. All data subject to change without notice.
Included
Arri Alexa Plus is available to rent at FRENEL rental.