camera on 50 fps, audio 25?

[Dennis Kersten]

Quick question, on set right now and we're wondering;

When the camera rolls 50 fps and the sound 25 fps is the first frame of video/audio in sync? In otherwords does the audioclip sync with the videoclip on the first frame?

Thanks!!

Sent from my iPhone using Tapatalk

[Dennis Kersten]

Ok tested it quickly, not possible to use ext tc when filming on 50 fps. Seems logical

Sent from my iPhone using Tapatalk

[Marc Wielage]

Correct. SMPTE has yet to finalize any timecode standards over 30fps at the moment. There's a committee that's going to do some kind of whacked-out "granular" timecode standard that will work all the way up to 120fps, but it'll require a radical change in hardware and software in order to make it work. This is not a trivial change.

[Dennis Kersten]

Cool, thanks for the info Marc!

Sent from my iPhone using Tapatalk

[Diego Sanchez]

The best thing to do, if running dialogue, is to get them to do a slate clap, like in the old times. That way if they decide to ramp back to 25 the clip, or a bit of it, they can sync the audio back with the clap.

Also, be aware that if they go suddenly back to 25, the camera will be out of sync, so re-jam. You might know this but just in case.

[Prahlad Strickland]

I've done a few shoots with red ones, where they shot 50, i just sent 25,  all worked fine in post.