Sync problem at post with Red Weapon and 688

6.07K viewsHardwarered timecode

Hi Guys,

I just finished my project last week. I found after i sync everything together, video and audio got slightly offset.  Camera was Red Weapon 8K, my recorder was sound devices 688. I jammed the tentacle from 688 everyday before we shoot and used tentacle to jam Red and i left tentacle attached with RED weapon. we shot on 24 fps.

At post, i found at beginning of the day, audio and video had 1 or 2 frame offset, and the end of the day, audio and video got around 12 frames offset. we normally shot 12 hours a day, and i didn’t jam tentacle in the middle of the shooting, just let it run for the whole day.

is anyone got a idea here or know what it wrong here? why i have the offset?

Thanks Guys


Genlock? There is no Genlock on the Tentacle. Only timecode.

The 688 should keep timecode for a few hours when turned off.

If the RED is turned off and is reading timecode externally ALL THE TIME then there is no problem there because the tentacle stays on.

You are viewing 1 out of 4 answers, click here to view all answers.