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Hey. I wil be working on student film production soon. The camera for the job is Arri Alexa, I will be using Sound Devices either 744t or 788t. The problem I faced is the lack of time code cables at our state film school. I'll be recording to both, the recorder and the camera, however i might not be able to get ambient cable for tc (that could sound rather dull, but thats how things are here in Moscow).
So my question is, what are possible losses of recording into not synced recorder? Will the sync drift be visible?
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Timecode is very useful as it really does lock the devices together, but we do not live in an ideal world and sometimes it is not possible to record this way. As others have mentioned, slating each take with a clapper will be a good start. And if you are recording the Sound Devices' output on one of the camera channels, this will also be able to be used as the guide track in post.