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영상촬영장비

arri alexa 필름카메라로 유명한 arri사의 디지털카메라 alexa


arri alexa 필름카메라로 유명한 arri사의 디지털카메라 alexa





http://www.arri.com 출처
Camera Type 35 format film-style digital camera with integrated shoulder arch and receptacles for 15 mm lightweight rods.
Sensor 35 format ALEV III CMOS with Dual Gain Architecture (DGA) and Bayer pattern color filter array. 1.5x oversampling for 1920 x 1080 output. 1.78:1 (16:9) sensor area used for image out.
Frame Rates "ProRes 422 (Proxy), 422 (LT), 422 and 422 (HQ): 0.75 - 60 fps
Shutter Electronic rolling shutter, adjustable from 5.0° to 358.0° with 1/10 degree precision.
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 have 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. Otherwise they are the same.
White Balance Separate red/blue and green/magenta balance available through Auto White Balance or manual setting. Red/blue: 2000 to 11000 Kelvin, adjustable in 100 K steps, with 1 CC = 035 Kodak CC values or 1/8 Rosco values. presets of 3200 (tungsten), 4300 (fluorescent), 5600 (daylight), 7000 (daylight cool). Green/magenta: -8 to +8 color correction (CC),
Sound Level Under 20 dB(A) at ≤ +30° Celsius (≤ +86° Fahrenheit) with lens attached and fan mode set to ‘Regular’, measured 1 m/3 feet from the image plane. 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 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 camera body + SxS Module: 6.3 Kg/13.8 lbs 
ALEXA camera body + SxS Module + EVF-1 + Viewfinder Mounting Bracket VMB-2 + viewfinder cable + Center Camera Handle CCH-1: 7.7 Kg/16.9 lbs
Dimensions Length: 332 mm/12.95”, width: 153 mm/6.02”, 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)
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.
Assistive Displays On EVF-1 and MON OUT: frame lines, surround view, camera status, false color exposure check, peaking focus check, compare stored image with life image, RETURN IN video and optional anamorphic de-squeeze.
Control Camera right: main user interface with 3” transflective 400 x 240 pixel LCD color screen, illuminated buttons and jog wheel. Camera left: operator interface with illuminated buttons and card swap button. EVF-1: viewfinder and basic camera settings, ZOOM button (2.25x pixel to pixel magnification), EXP button (false color exposure check) and jog wheel.
In-camera Recording "Apple QuickTime/ProRes 4444, 422 (HQ), 422, 422 (LT) or 422 (Proxy) 1080p .mov files with embedded audio, timecode and metadata, recording to SxS PRO cards. ProRes 4444 is RGB 12 bit, all others YCbCr 10 bit
Recording Outputs "2x REC OUT BNC connectors for uncompressed ARRIRAW or uncompressed HD-SDI video. Both with embedded audio, timecode and metadata. 

ARRIRAW: 2880 x 1620, 12 bit log signal without white balance or exposure index processing applied. Requires an ARRIRAW T-Link certified recorder. 

HD-SDI video: 1920 x 1080 4:4:4 RGB or 4:2:2 YCbCr
Monitor Output "1x MON OUT BNC connector for uncompressed HD-SDI video: 1920 x 1080, 4:2:2 YCbCr
Color Processing For EVF-1, ProRes, 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 with ARRI XML Look Files.
Synchronization Master/Slave mode for precision sync of sensor, processing and HD-SDI outputs for 3D applications.
Playback QuickTime clips can be played back from the SxS PRO cards to the EVF-1, MON OUT and REC OUT outputs. Playback audio is available embedded on MON OUT and REC OUT and on the headphones jack.
Processing 16 bit linear internal image processing
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. Audio is recorded uncompressed into the QuickTime/ProRes file and embedded uncompressed in all HD-SDI outputs, including ARRIRAW T-Link. Max of 2.5 dBm output from AUDIO OUT headphones connector.
Connectors 2x slots for SxS PRO cards (SxS)
2x BNC recording out HD-SDI, 1.5G/3G switchable (REC OUT 1 and REC OUT 2)
1x BNC monitoring out HD-SDI 1.5G (MON OUT)
1x XLR 5 pin audio in (AUDIO IN)
1x BNC return signal/sync 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 out (AUDIO OUT)
1x LEMO custom 16 pin electronic viewfinder (EVF)
1x LEMO 10 pin Ethernet with power (ETHERNET)
SD Card Stores camera set up files, log files, frame line xml files and captured stills in ARRIRAW (.ari, 12 bit), TIFF (.tif, 16 bit), DPX (.dpx, 10 bit) and JPEG (.jpg, 8 bit) format. 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.
  Note: All technical data based on Software Update Packet (SUP) 4.0. All data subject to change without notice.


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