60P music video with timecode advice needed

[Adam Weinberg]

i'm shooting a music video mostly in 60P with lip sync, and want to be able to timecode slate it so, for example, i can shoot a 15 second segment mid-way through the song and know exactly where to slot it into my edit. the tricky part of course is that my camera's framerate is 60P while the project framerate will be 24P.

 

i won't have access to a proper professional slate with timecode (not that i'm sure it would help?) - i was planning on holding up a laptop running timecode from the song to use as a slate. the issue is, if i'm playing back the song on set at 250% with timecode so that it matches the 60P being recorded on my A7S, that timecode obviously won't match the A7S footage when everything is slowed down to 24P.

 

i'm wondering if my solution (though definitely not frame-accurate) is as follows:

- export a video file of the song at 24P with a timecode overlay.

- re-import that video into my editor and increase speed by 250% so the timecode is sped up as well.

- play back that sped up video with sped up audio / timecode on set

- slow everything down by 40% for editing and have a rough idea of where footage should fall in the timeline.

 

any advice, better methods of doing this? note: i am using outdated editing software (FCP7) if that makes a difference to this workflow..