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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

shooting red for 48fps or 60fps projection

J

Jason Joseph

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hi
we have a project coming up that requires 48 / 60 fps projection. does this mean we shld shoot at 48/60 fps in varispeed mode on the red? or do we shoot at 25 and export at 48/60fps? wat kind of workflow would you recomend.?
 
Even if you shoot speed you have to decide on a project timebase. That can either be 23, 24 or or 59.94

If this is for FILM projection then you might shoot a 24 TIMEBASE and a 48FPS at all times. A FILM projection system would then playback the 48fps at 48fps.

Ultimately you have to know the projection framerate in order to decide how to aquire this on the RED camera.

David
 
The projection company has replied that the projection framerate is going to be 48fps. so shoot in 48fps?
 
If there is sync sound involved, an important question is "How accurate are varispeed settings?" (I don't know the answer to this.) The base project settings are accurate enough for perfect sound sync, but a very small difference (say 24fps vs. 23.976fps) matters a lot in getting proper sound sync.

I'd suggest that you speak to someone at Red about that (Stuart would be a good candidate) if you can. If you don't get a definitive answer, TEST. If someone here has done this sort of thing, perhaps they'll speak up.

For testing, you should do multiple takes of longer than a minute, with clappers at both ends. Run them through your full work path; if sync holds for all takes, you're good to go.

As for workflow: shoot at the desired frame rate, then reinterpret the footage to the desired base rate (playback rate) in After Effects or Premiere. (I believe Cinema Tools will do it too if you use FCP, but I can't tell you that from personal experience.) You have to transcode to a full-quality on-line file format, because timecode wil be meaningless after the speed change.
 
thanks for the replies guys
will go out tm to do some tests.

how do u change to an 48fps timebase in FCP ? i looked at cinema tools too but the closest was 50fps. Do i have to use After Effects?
 
Is the projector not just 48fps because of the step printing thingymajig, so you should shoot 24 fps and repeat each frame once.
 
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