ARRI ALEXA Series User Manual

106 Camera Controls
Format Sensor
Mode
Reso-
lution
Color
Coding
Data
Rate
1
64 GB
SxS
PRO
1
XR
Capture
Drive
1
120 GB
CFast
2.0
1
DNxHD
115/120/
145
16:9 1920 x
1080
8 bit
YCbCr
115-
145
Mbit/s
72 min 255 min 132 min
DNxHD
175x/
185x/
220x
16:9 1920 x
1080
10 bit
YCbCr
175-
220
Mbit/s
48 min 170 min 87 min
DNxHD
444
16:9 1920 x
1080
10 bit
RGB
440
MBit/s
24 min 85 min 43 min
1
Data rate/recording time@24 fps
DNxHD is a fixed bitrate codec. The codec naming convention indicates
the codec’s project frame rate:
 DNxHD 115 = 23.976/24 fps
 DNxHD 120 = 25 fps
 DNxHD 145 = 29.97 fps (30 fps is not available)
 DNxHD 175x = 23.976/24 fps
 DNxHD 185x = 25 fps
 DNxHD 220x = 29.97 fps (30 fps is not available)
For a detailed table of available frame rates and possible codec/card
combinations, please refer to the Chapter FPS on page 70.
ARRIRAW
ALEXA XT cameras and ALEXA Classic cameras with an XR Module
upgrade allow direct recording of ARRIRAW images internally to XR
Capture Drives. Note that Codex Transfer Drives cannot be used for
recording.
Format
Reso-
lution
Color
Coding
File
size
(single
frame)
Data
Rate
@ 24 fps
Recording
time on XR
Capture
Drive @ 24
fps
4:3 ARRIRAW
2.8K
2880 x
2160
12 bit
Bayer
9.3 MB
1.79
Gbit/s
35 min
16:9 ARRIRAW
2.8K
2880 x
1620
12 bit
Bayer
7 MB
1.34
Gbit/s
47 min

ARRI ALEXA Series Specifications

General

Dynamic Range	14+ stops
Resolution	4.5K (ALEXA LF), 6.5K (ALEXA 65)
Recording Formats	ARRIRAW, Apple ProRes
Lens Mount	PL mount
Viewfinder	Optional EVF (Electronic Viewfinder)
Sensor Size	Super 35 (most models), Large Format (ALEXA LF, ALEXA 65)
ISO Range	EI 160 - EI 3200 (Base ISO 800)