AMIRA Workflow

QuickTime™ ProRes Recording

ARRI pioneered high-quality in-camera recording in a ready-to-use, QuickTime ProRes post-production codec. The flexibility of the QuickTime format, the quality of the ProRes codec, and its wide adoption throughout the post-production landscape, makes in-camera ProRes recording a huge benefit for the industry.

An AMIRA can record ProRes 422 (422 LT, 422 or 422 HQ) clips with 10bit 4:2:2 YCbCr color information as well as ProRes 4444 clips, providing full 12bit 4:4:4 RGB color images. The internal CFast 2.0 recording module allows shooting HD (1920x1080) or 2K (2048x1152) clips at up to 200 fps or 4K UHD (3840 x 2160) clips at up to 60 fps. The selection of codecs and the maximum frame rate depends on the feature license (Basic AMIRA set, Advanced license or Premium license).

The QuickTime files can include 4 track 24 bit/48kHz audio from the camera's XLR inputs and an additional (commentary) track from a connected Bluetooth audio source. The camera also embeds frame-accurate camera and lens metadata, from LDS compatible lenses, into the camera clips. The camera can record in a basic time code standard at 23.976p, 24p, 25p, 29.97p, 30p (progressive scan), or with high frame rate project speeds of 48p, 50p, 60p and the interlaced modes 50i, 59.94i, 60i (HD only).

Codec Overview

Format            Codec   Bit rate(1) at 25p/50i Data volume @ 25p/50i 128 GB recording time @ 25p/50i 128 GB recording time @ max fps max fps
HD
1920 x 1080
ProRes
422LT
422
422HQ
4444
4444XQ

85 Mbit/s
122 Mbit/s
183 Mbit/s
275 Mbit/s
412 Mbit/s

38 GB/h
55 GB/h
83 GB/h
124 GB/h
186 GB/h

154 min
108 min
72 min
48 min
32 min

19 min
13 min
9 min
6 min
6 min

200
200
200
200
120
2K
2048 x 1152
ProRes
422LT
422
422HQ
4444
4444XQ

97 Mbit/s
139 Mbit/s
209 Mbit/s
313 Mbit/s
469 Mbit/s

44 GB/h
63 GB/h
94 GB/h
141 GB/h
211 GB/h

135 min
95 min
63 min
42 min
28 min

17 min
12 min
8 min
5 min
5 min

200
200
200
200
120
3.2K
3200 x 1800
ProRes
422LT
422
422HQ
4444
4444XQ

236 Mbit/s
339 Mbit/s
510 Mbit/s
637 Mbit/s
955 Mbit/s

106 GB/h
153 GB/h
229 GB/h
287 GB/h
430 GB/h

56 min
39 min
26 min
17 min
11 min

23 min
16 min
11 min
7 min
9 min

60
60
60
60
30
4K UHD
3840 x 2160
ProRes
422LT
422
422HQ
4444
4444XQ

340 Mbit/s
489 Mbit/s
734 Mbit/s
1100 Mbit/s
1650 Mbit/s

153 GB/h
220 GB/h
330 GB/h
495 GB/h
742 GB/h

39 min
27 min
18 min
12 min
8 min

16 min
11 min
7 min
5 min
6 min

60
60
60
60
30

Note:
(1) QuickTime ProRes is a variable bit rate codec. The actual bit rate and data volume therefore vary
, depending on the recorded scene content.
(2) Due to bandwidth limitations, ProRes 4444 XQ offers a lower maximum recording speed.