Most effective general shutter setting in 24p- 1/48.0 ?

S

Scratched

Member
Hello,

I'm editing footage I shot at 24p with a shutter setting of 1/48.0
I'm using the ntsc 48khz (29.97) timeline and on my canvas it looks fine, although out to a video monitor the footage seems to have more than just a little strobing. I think its image twitter that is apparent to me. The camera detail was set on mid at time of shooting.
My question regards the shutter speed- Whats optimal in 24p? A film student/teacher told me to always as a default use a 1/48.0 shutter speed.
I'm rethinking that info. Aside from shooting monitors or televisions I dont understand why I should use 1/48.0 as a general shutter setting for 24p. I'm wondering if thats where the extra twitter, flicker funk came from.
I'm going to do some tests but if ya all have some suggestions as to whats a good shutter speed for 24p I'd appreciate it.

mahalo & thanks
 
That's the standard shutter speed because the standard film shutter angle is 180 degrees, or 1/48th at 24fps. If you want something close to a film look, that's what you want to use.

Anything faster (e.g., 1/60, 1/100) and you'll only get more stutter. Anything slower (e.g., 1/24) and you'll get a look that just isn't possible with film cameras, thus not a very film-like look.

1/48 is rather stuttery on film or video, when compared to 60i video. Your stutter problem could be that your depth of field is too deep. If everything is in focus and the camera is moving, it exaggerates the stuttery look. It could also be that you are previewing in Premiere, which only previews with 2:3:3:2 pulldown, so it won't look as smooth on your monitor during preview as it will when you render out a proper DVD with normal 2:3 pulldown.
 
Thanks Joshua,

I'll remember the depth of field note next time- I have to say that being new to FCP I figured my footage was at full rez from my timeline. I rendered my timeline for a preview and lo and behold my footage looked a hell of a lot better. The depth of field note makes a lot of sense though.
Cheers
 
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