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26 giu 2016 · Arri's website says that shooting arri raw open gate gives you a frame size of approximately 3.4 K with a 1: 1.55 aspect ratio. Why is that an important feature? To gain more pixels by recording on a bigegr sensor?Is this mode especially convenient with anamorphic? and is that aspect ratio the "final" aspect ratio of the image?
Introduction. ALEXA XT cameras with SUP 9.0 (except ALEXA XT M, which will be updated in a future software upgrade) are capable of a new sensor mode called Open Gate, which uses the entire sensor area for recording in ARRIRAW. This document reflects the technical details, the operation and post production of this new mode. 4. Technical details.
ARRIRAW FAQ. Learn & Help. Camera & Workflow. Pre- & Postproduction. ARRIRAW FAQ.
- What is ARRIRAW?ARRIRAW is the raw format of ARRI's digital cameras. Its file extension is *.ari or *.mxf. The sensor readout of our ALEV3 and ALEV4 sensor is a ra...
- What is MXF/ARRIRAW?MXF/ARRIRAW is ARRIRAW with a wrapper. All frames are wrapped within a MXF container. ALEXA Mini and AMIRA use this format to write ARRIRAW to CFas...
- What is the resolution of ARRIRAW?The resolution of ARRIRAW is not fixed to a specific number! It depends on the camera and its selected sensor mode. ALEXA 65 records the biggest AR...
- What is the bit rate of ARRIRAW?This, again, depends on the type of ARRIRAW you want to record. 16:9 2.8K ARRIRAW records at 1.34 Gigabit per second at 24fps; Open Gate on ALEXA 6...
- Does ARRIRAW have an HDR feature?The ALEXA or AMIRA series cameras do not offer a special HDR mode. The camera's ALEV3 sensor provides an unrivalled 14+ stops of exposure latitude...
- Is ARRIRAW an open format?Yes, it is. We've successfully submitted SMPTE Registered Disclosure Documents (RDDs) on ARRIRAW: RDD 30:2014: ARRIRAW Image File Structure and Int...
- When shooting raw, what are my options for live viewing?The camera always outputs an HD or UHD monitoring image with optional surround view (see what is around the frame), status information and configur...
- What is the dynamic range of an ARRIRAW file and how does it compare to ProRes?The ALEV4 sensor offers 17 stops and the ALEV3 sensor 14+ stops of dynamic range with a base sensitivity of EI 800. This dynamic range is available...
- How can I create a verified copy of ARRIRAW data?ARRIRAW footage is wrapped into a MXF container or can be a straightforward file sequence. There are various software tools to generate a verified...
- What metadata is recorded along the image in an ARRIRAW file?The metadata contains all camera settings, production notes, optionally scene and take information, camera tilt and roll and lens metadata (if an L...
- 1 - Pulling Your HW Info
- 2 - Purchasing The License
- 4 - Recording in ProRes
- 5 - Recording in ARRIRAW
First step is to purchase a license for the privilege of shooting 4:3. But before you can even begin the purchase process, you have to pull some data from your Alexa Mini - essentially its thumbprint - to verify the thing. To get this thumbprint, plug a flash drive formattedas FAT32into the camera via the USB port directly below the CFAST slot in t...
If you couldn’t guess, the next step is heading over to the ARRI License Shop, where you can buy the ability to shoot Open Gate 4:3. They will ask for the serial number of your camera, which is then burned into the license directly. This is a non-transferable piece of software, unfortunately. Follow their instructions, then copy the downloaded file...
The 4:3 license has allowed you access to a plethora of new settings, all listed as simple resolution choices. While they are not true Open Gate, they are pretty darn close and more than enough for any anamorphic workflow. Those choices are: * 4:3 2.8K (2880 x 2160) * 2.39:1 2K Ana. (2048 x 858 de-squeezed from 2560 x 2145) * HD Ana. (1920 x 1080 d...
The ARRIRAW license, when combined with the 4:3 license, unlocks a few extra goodies. With both installed, the Alexa Mini can record Open Gate 3.4K RAW - utilizing the entire ALEV III sensor, top to bottom. In all other record modes, the camera is recording from some subset of all the pixels available to it. In Open Gate, every single pixel is acti...
Is there an ARRI RAID driver for windows? Sensor Mode, Recording Formats, Distribution Formats. Can you explain the differences between sensor modes, recording formats and distribution formats? Why 6:5? I thought you needed 4:3 for anamorphic? How can I know which lenses will work in Open Gate sensor mode?
- What are the main features of the ALEXA SXT Cameras?Here is the short list: New Recording Formats New ARRI Look Management Super flexible on-set monitoring Improved image quality Single speed mode Ne...
- Is there a short overview of the new features and recording formats of the ALEXA SXT?You can download a short overview right here.
- Can you give a more detailed list?And here is a slightly longer list with more details: New recording formats 16:9 ProRes 4K UHD (3840 x 2160) The easiest and fastest path to the be...
- How can I learn more about the ARRI Look Management?If you want to learn more about the ARRI Look Management please download our ALEXA SXT Look Management White Paper.
- Which third party products support the ARRI Look Management?Live grading on set with the ARRI Look Management is supported by Pomfort LiveGrade, Codex Live, Colorfront On-Set Live, Filmlight Prelight, Techni...
- What features are not available in ALEXA SXT cameras?Some features of previous ALEXA cameras are not available in ALEXA SXT cameras anymore: ALEXA SXT cameras do not have the option of recording DNxHD...
REVEAL Color Science. New post workflow for ARRIRAW, and still compatible with HDE. More accurate colors and subtler tonal variations. Optimized color match between ALEXA Mini LF and ALEXA 35. REVEAL Color Science. Learn all about ARRI’s new colorpipeline for ALEXA Mini LF, ALEXA 35 and other ALEXA models. Explore more. First choice on big sets.
Yes. ALEXA LF is Netflix approved in all three sensor modes (LF Open Gate, LF 16:9 and LF 2.39:1) and in ARRIRAW and ProRes (4444 XQ, 4444 and 422 HQ) recording formats. The ALEXA LF is listed in Netflix' Partner Help Center as an approved camera.
