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Crossfade in 23.98 timebase choppier than 29.97i
I have some EX3 footage that was shot as 23.98 in the HDV codec, I was working in a 29.97i timeline and converted the sequence to 23.98, all my transitions went from 15 frames to 12 frames, which is understandable so I changed back to 15 and even 20 frame cross fades and still the 15 frame crossfade on the 29.97i timeline looks way smoother than the longer 20 frame crossfade on the 23.98 timeline. I even did QT exports to make sure it wasn’t FCP.
Any ideas? Is this just the way 23.98p is?
Update: I am using ProRes 422 HQ as my sequence codec for both, the ProRes codec was set to interlaced top field first, I changed it to none and could not see a difference.
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16 Replies
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If you think about it, a dissolve is a blending of frames with varying opacity. Regardless of the length of the dissolve, it is about the number of frames resolved per second so the frame rate will make a difference to the perception.
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So this is normal? If it is then I am fine with it, I just want to make sure I am not doing anything wrong.
Thanks
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[Elijah Lynn] “So this is normal?”
I work in 25 fps so you might want a second opinion. There may be something in the way you have moved footage between sequences. try opening a new sequence @ 23.98, edit in two shots the same as you sequence and try a dissolve to see if it looks the same.
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Good suggestion, the same thing happens in a new sequence with a keyframe slug over a solid color.
Thanks!
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If you are used to working in 60Hz, 24p will look different for sure.
Then you’ll do a handful of 24p jobs and everything will be fine.
Then you’ll get another 60i gig, and you’ll say, damn this 60i looks like it’s playing too fast, is this normal?
🙂
You’re all good.
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Thanks for the comment Jeremy, it is comforting!
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Update: The system I was working on had issues. I tested it on another system and while I can see the difference, it isn’t nearly as much as I was seeing the other day. What I was seeing looks more like a 10fps crossfade, and I don’t mean 10 frame crossfade either! I am glad it looks nicer than that!
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You aren’t watching this on an external monitor?
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[Jeremy Garchow] “You aren’t watching this on an external monitor?”
No, just the system monitor, both systems had a Dell monitor. But system A looks awesome and system B looks very choppy. Same sequence settings. There was something up with the system, it wasn’t mine so it is out of my control. When I got back to my system I tested again and all is awesome in 23.98p land!
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Perhaps the rt settings were set to dynamic or medium instead of full. That can cause fcp to playback less frames in order to crunch through rt previews faster.
Alright. I’ll keep my “get a real monitor and capture card, as it’s the only way to truly see your footage” lecture brief:
Get a real monitor and capture card, as it’s the only way to truly see your footage
Jeremy
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