ARRI ALEXA - Page 79

Main Controls 79
Quick format SxS
CARD 1/2
Opens a screen where the SxS PRO card can
be formatted. This action is fast, as it only
erases the file allocation table.
Erase SxS CARD 1/2 Opens a screen where the SxS PRO card can
be erased. This action takes longer than the
quick format, but ensures that all data of the
card is erased, and can also result in higher
card write speeds.
Note: Formatting and erasing is only enabled if the write protection of the card is
switched off. The write protection cannot be switched off while the card is mounted in
the camera!
Note: Formatting or erasing an SxS PRO card removes all data irreversibly from the
card. Be careful not to format any SxS PRO cards with data before they have been
backed up!
When cards without a valid file system are inserted into the camera, a
screen will appear that asks for card formatting. It is recommended to
directly format the card and not to postpone this action.
Apple ProResTM codecs
The following table gives an overview of the range of ProRes codecs. All
these codecs are supported by ALEXA.
Name Color
coding
Data rate
@ 30 fps
Recording time
on 32 GB SxS
PRO @ 30
fps***
max. frame
rate with
SxS PRO 8-
32 GB
max. frame
rate with
SxS PRO
64 GB
ProRes
422
(Proxy)
YCbCr 45 Mb/s 1 h 23 min 60 fps 120 fps²
ProRes
422 (LT)
YCbCr 102 Mb/s 37 min 60 fps 120 fps²
ProRes
422
YCbCr 147 Mb/s 25 min 60 fps 120 fps²
ProRes
422 (HQ)
YCbCr 220 Mb/s 17 min 60 fps 120 fps²
ProRes
4444*
RGB* 330
Mb/s*
11 min 40 fps 60 fps
*Without alpha channel (444 only)