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ARRI ALEXA XT Ver más grande

ARRI ALEXA XT

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Alquiler Cámara ARRI ALEXA XT

La cámara ARRI ALEXA XT (Xtended Technology) añade un número significativo de mejoras a los modelos anteriores de la gama ARRI ALEXA: grabación interna en ARRIRAW, filtros ND internos, un sensor 4:3 de Super 35, ventilador super silencioso, alta velocidad de grabación, entre otras. La cámara ARRI ALEXA ofrece unas excelentes prestaciones, cubriendo así todas sus necesidades con total garantías.

Estas características añaden beneficios a aquellos que ya habían asentado los distintos modelos de ALEXA haciendo de esta cámara una de las más competitivas del mercado.
Todas las cámaras ARRI de la gama ARRI  ALEXA pueden ser actualizadas a la versión XT añadiendo el módulo de grabación XR, que reemplaza al módulo SxS y que amplía considerablemente los modos de grabación.

Si desea más información sobre el fabricante: ARRI ALEXA CAMERA

Camera Type

35 format film-style digital camera with an electronic viewfinder, an Open Gate/4:3/16:9 switchable active sensor area, 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

16:9
2880 x 1620 used for ARRIRAW 16:9
2880 x 1620 down sampled to 1920 x 1080 for HD-SDI, ProRes HD 16:9 and DNxHD HD 16:9
2868 x 1612 down sampled to 2048 x 1152 for ProRes 2K 16:9

4:3 Full
2880 x 2160 used for ARRIRAW 4:3 Full
2868 x 2150 down sampled to 2048 x 1536 for ProRes 2K 4:3

4:3 Cropped
2578 x 2160 used for ARRIRAW 4:3 Cropped

Open Gate
3414 x 2198 used for ARRIRAW Open Gate

Operating Modes

16:9, 4:3 Full, 4:3 Cropped or Open Gate sensor modes. Switching takes approx. 60 seconds. 16:9 available for ARRIRAW, ProRes and DNxHD recording. 4:3 Full available for ARRIRAW and ProRes 2K recording. 4:3 Cropped and Open Gate available for ARRIRAW recording.
Regular or High Speed mode. Switching takes approx. 20 seconds.

Frame Rates

16:9
ProRes HD 0.75 - 120 fps
ProRes 2K 0.75 - 60 fps
DNxHD HD 0.75 - 120 fps 
ARRIRAW 0.75 - 120 fps

4:3 Full
ProRes 2K 0.75 - 48 fps
ARRIRAW 0.75 - 90 fps

4:3 Cropped
ARRIRAW 0.75 - 96 fps

Open Gate
ARRIRAW 0.75 - 75 fps

All speeds adjustable with 1/1000 fps precision. To record above 60 fps, the camera needs to be switched to high speed mode. 

Note: some limitations based on recording media or recording file settings apply. 

For a detailed table of frame rates for ALEXA XT cameras 

Shutter

Electronic rolling shutter, 5.0º - 358.0º up to 60 fps; 5.0° to 356° above 60 fps. Shutter angle adjustable with 1/10 degree precision.

Filters

Built-in Internal Filter Module (IFM-1) filter holder. Accepts one of eight Full Spectrum Neutral Density (FSND) filters, manual insertion/removal. Permanent filters in front of the sensor: optical low pass, UV, IR

Exposure Latitude

14+ stops for all sensitivity settings from EI 160 to EI 3200, as measured with the ARRI Dynamic Range Test Chart (DRTC).
For a graphic of how the exposure latitude shifts at different EIs, 

Exposure Index


Values behind the exposure index are the number of stops above and below 18% grey. These values are for Log C. Rec 709 is the same except for 0.3 stops fewer in the low end at EI 160, 200 and 400.

White Balance

Presets for 3200 (tungsten), 4300 (fluorescent), 5600 (daylight) and 7000 (daylight cool). Automatic calculation or manual white balance for 2000 to 11000 Kelvin, adjustable in 100 K steps

Color Correction

While white balance changes the red/blue hue of the image, color correction changes green/magenta. Adjustable range from -12 to +12 CC. 1 CC corresponds to 035 Kodak CC values or 1/8 Rosco values.

Sound Level

Under 19 db(A) while recording ProRes 4444 16:9 HD @ 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 possible inputs: BAT connector, optional battery adapter back or optional battery adapter top. All inputs accept 10.5 to 34 V DC. Approx. 90 W power draw for camera and EVF-1 in typical use recording ProRes at 24 fps to an SxS PRO card at room temperature, without accessories. Initial power draw during power up is higher.

Power Out

12 V connector: limited to 12 V, up to 2.2 A. RS, EXT and ETHERNET: input below 24 V is regulated up to 24 V; above 24 V: input voltage = output voltage. RS and EXT connectors combined are limited to 2.2 A. ETHERNET is limited to 1.2 A. Maximum power draw is also limited by the power source.

Weight

ALEXA XT body with XR Module: 6.6 kg/14.5 lbs.
ALEXA XT body with XR Module, electronic viewfinder and handle: 8.0 kg/17.6 lbs.

Dimensions

Length: 332 mm/12.95”, width: 161 mm/6.33”, 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

54 mm stainless steel LDS PL mount, Super 35 centered. 52.00 mm nominal flange focal depth without FSND filters.

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 magnification 'pixel to pixel'), EXP button (false color exposure check) and jog wheel.

Assistive Displays

For EVF-1 and MON OUT: preset and custom frame lines, user rectangles, surround view, 180º image rotation, camera status, false color exposure check, peaking focus check, compare stored image with live image, RETURN IN video and anamorphic de-squeeze. For MON OUT additionally: Reel & clip number.

For a graphic of which false color indicates which exposure level,

Control

Camera right: Main user interface with a 3” transflective 400 x 240 pixel LCD color screen, illuminated buttons, button lock and jog wheel. Camera left: Operator interface with illuminated buttons and button lock. Optional accessory Remote Control Unit RCU-4 for cabled remote control via camera ETHERNET connector. Optional accessory Wireless Compact Unit WCU-4 for wireless remote control (UMC-3A required).

In-camera Recording

Uncompressed and unencrypted ARRIRAW, compressed and unencrypted QuickTime/ProRes or compressed and unencrypted MXF/DNxHD recording onto XR Capture Drives. With SxS Adapter: QuickTime/ProRes or MXF/DNxHD onto SxS PRO or SxS PRO+ cards. With CFast 2.0 Adapter: QuickTime/ProRes or MXF/DNxHD onto CFast 2.0 cards. All formats include embedded audio, timecode and metadata. ARRIRAW can additionally store an ASC Color Decision List (CDL) from an on-set network connection.

Recording Outputs

2x 1.5G or 3G REC OUT BNC connectors for uncompressed 1920 x 1080 4:4:4 RGB or 4:2:2 YCbCr HD video at 23.976, 24, 25, 29.97, 30, 50, 59.94, or 60 fps. Recording other speeds requires a recorder with Variflag support. Legal or extended range signal mapping. Embedded audio, time code, metadata and recording flag. ALEXA XT models do not offer ARRIRAW T-Link output.

Monitor Output

1x 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. Embedded audio, time code, metadata and recording flag.

Image Processing

16 bit linear internal image processing in full ALEXA native color space. Target output color spaces for ProRes, DNxHD, REC OUT and MON OUT: Log C or Rec 709. For Rec 709, 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 QuickTime/ProRes or MXF/DNxHD 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, ProRes or DNxHD from XR Capture Drive or playback of ProRes or DNxHD from SxS PRO or SxS PRO+ cards visible on EVF-1, MON OUT and REC OUT. Playback audio available over headphone jack and embedded in the MON OUT and REC 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, DNxHD (1) 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 for XR Capture Dive or SxS adapter
2x BNC recording out HD-SDI, 1.5G/3G (REC OUT 1 and REC OUT 2)
1x 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)
2x 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)
BNC connectors designed for fast exchange without camera disassembly. These connectors require a special tool.

SD Card

For importing and storing ARRI Look Files, camera set up files, frame line files, feature license keys and user pixel masks. Stores captured stills from the REC OUT image path in TIFF (.tif, 16 bit), DPX (.dpx, 10 bit) or JPEG (.jpg, 8 bit) format (1). 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 (basic and Plus version) 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 via free of charge Software Update Packets (SUPs) and payable license keys – Anamorphic De-squeeze (included), High Speed (included) and DnxHD.

Sensibilidad ISO: 800
Tamaño sensor: Super 35
Formato sensor: 4:3 / 16:9 / Open Gate 16:9
Resolución sensor: 7.5 Mpix
Montura óptica: PL
Máx. framerate: 120 fps
Latitud: 14 stops
Salidas vídeo: HDSDI
Formato grabación: ArriRaw (onboard), Apple ProRes
Bitrate grabación (mín-máx) 25 fps: 38-315 Mbps
RAW: Interno

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