ARRI ALEXA 35 Body & PL Mount Set (LBUS) - Manual (Page 58)

Recording 58
12.6 Clip Naming Scheme
Camera Index The camera index consists of two characters, A-Z + _. User assignable, it
should match the camera unit. For example, the camera index A_ can be
assigned to the A camera, and B_ to the B camera etc.
Reel Counter 4 characters, 0001-9999. Automatically increments for each blank recording
medium. The user can change the counter for the next reel. This should on-
ly be done under special circumstances, such as after changing the camera
body in the middle of a shoot.
Clip Counter One prefix, fixed to C, to separate the reel counter from the clip counter. 3
characters, 001-400. Automatically increments each time a clip is recorded.
Date Current system date (YYMMDD) as set in MENU > System > System Time
+ Date , separated from the other naming components by an underscore.
Time Current system time (HHMMSS) as set in MENU > System > System Time
+ Date , separated from the other naming components by underscore.
Codec Identifier One character, identifies the clip codec (a = ARRIRAW, p = Apple ProRes).
Camera ID The camera serial number encoded in 4 letters Base 36 (0-9, A-Z). 12RJ
translates into decimal serial number 50239.
File Extension All clips are written as MXF files.
For more information on the Camera Index and the Next Reel Count please see "Project Settings",
page 36 .