ARRI ALEXA

Flexibility, power and economy. The Arri ALEXA is a compact and lightweight digital camera that redefines the limits of digital motion picture capture with ultra-fast workflows and image quality akin to 35mm film. From major motion pictures and high end dramas to commercials, music promos and mainstream television, the Arri ALEXA suits a wide variety of applications and budgets.

The unique construction of the Arri ALEXA allows for various output signals to be generated, accommodating diverse production needs and pipelines. The Arri ALEXA is unique in that it can simultaneously record Apple QuickTime/ProRes files, output uncompressed HD video or uncompressed ARRIRAW data. This output versatility makes it ideal for a myriad of productions and workflows from television to feature films.

Image Performance

Sharp images for HD and 2K DI

  • A dynamic range of more than 13 stops
  • 800 ISO base sensitivity (exposure latitude ranges from 200 to 1600 ISO)
  • Exceptionally low noise
  • Variable electronic shutter angle 5.0 degrees to 358.0 degrees
  • Rec 709 video or Log C outputs- gamma space
  • Alexa does not produce 720p images – but shooting 1080p allows you to sell your program to all countries that have chosen 1080p and it can easily be down-converted to 720p

Workflow

  • Direct to edit workflows
  • Record 1080p Apple ProRes 4:2:2  or 4:4:4 QuickTime onto SXS cards
  • Straight online with ProRes
  • Can simultaneously record Apple ProRes files, output uncompressed HD- SDI video and uncompressed ARRIRAW data.
  • Can encode images with the ProRes codec and combine them with audio and metadata into QuickTime files in REAL time.
  • If you need to get HD images as quickly as possible from the camera into post you can record QuickTime/ProRes files onto the on-board SxS cards, put into a laptop and edit immediately – a fast and simple way to increase efficiency through a tapeless, file-based recording.  It is high quality ProRes 4:2:2 and 4:4:4
  • Recording uncompressed HD or ARRIRAW for an offline/online workflow with external media recorders( ie Codes, S-2 )
  • The QuickTime/ProRes off-line editing proxy is created directly in the camera
  • Carries the same images, audio (not enabled as of yet), time code and metadata as the online HD or ARRIRAW material
  • Removes the time-consuming extra step of ingesting and creating an off-line copy and ensures complete congruency between off-line and on-line versions

Please contact PS Camera for more information on Arri ALEXA camera rental packages.

Details

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Camera Type 35 format film-style digital camera
Sensor ALEV III CMOS
Frame Rate 0.75 – 60 fps forward only, adjustable with 1/1000 precision.
Lens 54 mm PL mount, adjusted for Super 35
Shutter Electronic shutter, adjustable from 5 to 359° with 1/10th precision.
Viewfinder Electronic color viewfinder with a 1280 x 720 pixel F-LCOS micro display and Arri LED backlight. Comes with an eyepiece diopter. Optional Viewfinder Extension Bracket VEB-1 and long EVF cable. High-speed interface to camera for very low latency.
Viewing Screen Superimposed format markers (customizable), peripheral image area and camera status. Pixel to pixel display for critical focusing. False color display for easy exposure check. Image can be flipped for use on left or right side of camera.
Connections
1x monitoring out HD-SDI 1.5g (MON OUT) 1x time code (TC)
1x return signal/sync in HD-SDI 1.5g (RET/SYNC IN) 1x headphone jack
1x accessory interface (EXT) 1x audio in XLR 5-pin (AUDIO IN)
2x recording out HD-SDI 3g/1.5g switchable (REC OUT) 1x viewfinder interface (EVF)
1x 24 V power in (BAT) 1x powered network (NET)
2x 24 V accessory power (RS) 1x memory card module
1x 12 V accessory power  
Dimensions
Length 332 mm/12.95" – body with PL mount
Width 153mm/6.02" – body only
Height 158mm/6.22" – body only
Recording
Internal to SxS memory cards 1080p Apple ProRes 422 (HQ) or Apple ProRes 4444 QuickTime® HD video with embedded 2-ch audio and ancillary metadata xml-fle.
External via HD-SDI REC OUT ARRIRAW or 1080PsF 4:4:4 rgB/4:2:2 YCbCr HD video. Recording frame rates other than HD standard 23.976, 24, 25, 29.97, 30, 50, 59.94,60 PsF requires a recorder with Variframe support. Recording ARRIRAW requires an ARRIRAW T-Link certified recorder.
Aperture
Mode Dimensions Aspect Ratio Pixels
Recording ARRIRAW 23.760×13.365 mm / 0.9354×0.5262" 16:9 2880 x 1620
Recording HD 23.760×13.365 mm / 0.9354×0.5262" 16:9 2880 x 1620
Monitoring/EVF 26.136×14.702 mm / 1.0290×0.5788" 16:9 3168 x 1782
Power 12 or 24 V DC
Accessories ALEXA has integrated clamps for 15mm rods. ALEXA is compatible to a wide range of production and lightweight matte boxes (15 or 19 mm system), follow focus units, lens control system (LCS) components, wireless remote system (WRS) components, electronic accessories and support systems. Specifically for ALEXA: 19mm rod bridge plate (BP-12), bridge plate adapter (BPA-1) for mounting on standard bridge plates (BP-3/5/8/9), wedge adapter (WA-1) for mounting on the Digi-Cine quick-release base plate (QR-HD1), shoulder pad (SP-3), ALEXA Ethernet Adapter (AEA-1), leveling block (LB-1), viewfinder interface cables, viewfinder mounting bracket (VMB-1), viewfinder extension bracket (VEB-1), electronic viewfinder (EVF-1), ALEXA low mode support set (LMS-3), center camera handle (CCH-1), handle extension block (HEB-2), side camera handle (SCH-1), battery adapter top for gold Mount (BAT-G), battery adapter top for V Mount (BAT-V), battery adapter back for gold Mount (BAB-G), battery adapter back for V Mount (BAB-V), spare fan module (SFM-1), ALEXA rain Shield (ARS-1)