Canon EOS 5D Mark IV L-series Zoom Lens Kit Owner's Manual

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3

 Setting the Movie Recording Quality

 

J

 MJPG

Selectable when the movie recording format is [MOV]. Motion 
JPEG is used to compress the movie for recording. Without any 
compression between frames, each frame is compressed at a time 
and recorded. The compression rate is therefore low. Also, since 
the image size is large with 4K quality, the file size will be large.

W

 ALL-I (For editing/I-only)

Selectable when the movie recording format is [MOV]. 
Compresses each frame at a time for recording. Although the file 
size is larger than with IPB (Standard), the movie is better suited in 
editing.

X

 IPB (Standard)

Compresses multiple frames at a time efficiently for recording. 
Since the file size is smaller than with ALL-I (For editing), movie 
shooting time will be longer (with a card of the same capacity).
 IPB (Light)
Selectable when the movie recording format is [MP4]. Since the 
movie is recorded at a bit rate lower than with IPB (Standard), the 
file size will be smaller than with IPB (Standard) and the playback 
compatibility will be higher. Of the four movie-recording methods, 
this one provides the longest possible shooting time (with a card of 
the same capacity).