Voici un tuto qui pourra aider ceux qui font des prises de vue en Log
Or how to add a filter to a clip. 
Most people will get stuck at a missing LUT file. The general answer is from your camera’s manufacturer, but that is not always easy to find. Sometimes, a web search helps but also the user might be faced with multiple choices, not only in which provider but also the type of conversion. Most people will want to choose the one that converts to “ITU-R BT.709” more commonly known as “Rec. 709.”
“La plupart des utilisateurs se retrouvent bloqués par un fichier LUT manquant”
Oui mais ça se trouve facilement
J’ai téléchargé ici pour mon A6700