Phantom Flex, Руководство пользователя

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91
Phantom Flex Manual
90
Phantom Flex Manual
the shot can be trimmed quickly and easily at the camera before transfer.
Even if an entire 32G shot is transferred, this process only takes 30 seconds
to complete.This is by far the most efficient system for shooting, as bad takes
need not be saved and only the valuable parts of good takes are saved, saving
both time and memory space.
The CineStation is a downloading dock for the CineMags.The Flex camera can
be used to download the files, however it is limited to Gigabit Ethernet speed,
and this also ties up the camera.The standard CineStation has component HD,
single link 4:2:2 HD-SDI & dual-link 4:4:4 HD-SDI outputs, as well as Gigabit
Ethernet connectivity. An optional module upgrades the CineStation to
10 Gigabit Ethernet (10GE) output. With a standard laptop computer and
a reasonably fast portable hard drive, a 512G CineMag will download over
Gigabit Ethernet in approximately seven hours. Using a 10GE CineStation
with an optimized workstation and hard drive array that same 512G CineMag
can download in about one hour (depending on other conditions).
Using a pair of CineMags and a CineStation, the Phantom Flex can be used
in a style similar to a standard production film camera. One need not fill
an entire CineMag before downloading it.To limit the amount of downloading
needed at the end of the production day, a few shots may be captured to
a CineMag, before swapping it with another CineMag on the Phantom.
The first CineMag may then be downloaded at the CineStation.
All cameras come with Vision Research’s Phantom software (PC only), which
can convert RAW files to DPX,TIFF, JPEG,or DNG or formats.This software is
free to use.
Gluetools Phantom CineToolkit (Mac only) is a QuickTime plug-in which
allows CINE files to be used natively by Compressor or Final Cut. Gluetools
also has a product called Cineon/DPX Pro which, together with teh Phantom
Cine toolkit will convert RAW files in compressor to DPX.
What do I do with the
Uncompressed RAW files?
To copy this material, the files are downloaded from the camera ʼ s internal
RAM via Gigabit Ethernet through the laptop computer controller to a hard
drive. Downloading Uncompressed RAW is not a real-time operation; it takes
more than 10 min to transfer the entire memory buffer from the camera.
However, there are ways to make this process more efficient (see below).
The third & most common method is to transfer data to a CineMag, a portable
flash memory device that clips to the top of the Phantom Flex. A 32G RAM
memory in the camera takes just 30 seconds to transfer to the CineMag,
which can then be downloaded later.The CineMag is available in 128G, 256G
and 512G models.The CineMag stores or “packs” data differently from the
internal RAM using a 10-bit Log structure rather than a 12-bit Lin one.
By doing this, a 512G CineMag can hold 76 minutes of 2560x1440 footage
when played back at 24fps.The CineMag can be later downloaded using the
camera or through a CineStation docking station. When downloaded and
returned to Linear files, the RAW material will unpack to approximately 850G,
so Abel suggests planning to use a one terabyte hard drive for each 512G
CineMag of footage. For more on the CineMag and CineStation, see below.
The Phantom is limited by its internal RAM recording capabilities, but it is
also able to record to 128G, 256G and 512G capacity CineMags, which are
interchangeable flash-based memory magazines that clip to the top of the
camera.The 512G CineMag can record up to 76 minutes of Uncompressed
RAW footage at 24fps (2560x1440).There are two ways to work with the
CineMags. One can record directly to them, but the capture speed capability
is less than that of the internal memory, so the top frame rate at 2560x1440 is
222fps. It takes approximately 8 minutes to fill an entire 512G CineMag at this
resolution and frame rate.
The CineMag fills its memory sequentially, so a shot cannot be “thrown
away.” Instead the entire CineMag must be cleared all at once, akin to
exposing a roll of film.The other method is to capture to the Phantom
ʼ
s
internal RAM and then transfer to the CineMag. One advantage to this is that
What are the CineMag
and CineStation?