Hello, I read that you can still get the 'film' look by shooting at 720 60p and converting to 24P. Can I perform this conversion with either Adobe After Effects CS5 or Adobe Premiere CS5 Pro ? or do I need some special software? I am on PC by the way. Will this be just as good as shooting 1080 24P right off the bat?
GH1 720 60P to 24P??
- Thread starter sebek
- Start date
Justyn
Veteran
Well it's all about converting the timebase. You need to make the 60p conform to 24 P and then you'll get the proper 2.5 times slowmotion. Not sure what you'd use on windows but on the mac we have a lovely program called Cinema tools. Works perfectly. I try and shoot all of my slowmotion like this and then do optical flow if I want somethign slower...
cheers
cheers
Yes and no. Yes - in After effects you can make a perfect 60P to 24P conversion. No - you will never have the high resolution you get by shooting 1080 24P.
However, if you're final delivery is going to be 1280x720 or smaller, you will be fine. If your final delivery is going to be 1920 x 1080, then you should shoot 1920 x 1080.
Anyway, here's how to do it in After Effects. Drag and drop your 720 60P clip onto the Make New Composition icon. After the comp is created, go to the comp's settings and change the frame rate form 59.94 to 23.976. In the timeline, turn on Frame Blending for the clip and set it's quality to high (that's the solid diagonal black line). That's it. Render, and you'll have a perfect 24P version of your movie.
does it really look much different in 24p?
Thanks. If I do decide to shoot 1080 24p, will After Effects CS5 or Premiere Pro, convert my file perfectly? I read that the GH1 file is actually 60i and you need to convert it to true 24p. They mention using Neoscene - will take your GH1 AVCHD files, transcode them, and apply deinterlacing and a reverse telecine conversion, producing a proper 1080P/24 file for editing.
Blackout
Veteran
I am of the school of thought that thinks that 720 60p conversion to 24p looks like shittles (like the skittles candy but not very tasty or colorful).
You have to finagle a bunch of kaka and it never ends up looking as nice as true 24p so why bother? Shoot in true 24p and gain two benefits - the beautiful motion cadence of 24p and also twice the resolution. Save 60p for either that live video news look if you must have that for a client or TV show and for slow mo shots for your 24p segments.
You have to finagle a bunch of kaka and it never ends up looking as nice as true 24p so why bother? Shoot in true 24p and gain two benefits - the beautiful motion cadence of 24p and also twice the resolution. Save 60p for either that live video news look if you must have that for a client or TV show and for slow mo shots for your 24p segments.
Ben_B
Veteran
If you do it the fast way (just dropping 60p into a 24p timebase) it will be good enough for most shots. For the one's it isn't you can do a conversion process.
@Blackout, the main reason to do this on the GH1 (not GH13) is because the 720/60p on the GH1 is less prone to codec issues than the 1080/24p. I did 24p for all my narrative film work but 720/60p to 24p for all my run and gun stuff.
Here are two videos I did with 720/60 to 24p (with a bit of slow motion in there) mostly just by the fast and uglier method of dropping into another timebase, but a few shots were done with the slower and better conversion process (Sorry for the lower quality vimeo encodes, didn't have my super high standards back then, probably don't want to full-screen):
@Blackout, the main reason to do this on the GH1 (not GH13) is because the 720/60p on the GH1 is less prone to codec issues than the 1080/24p. I did 24p for all my narrative film work but 720/60p to 24p for all my run and gun stuff.
Here are two videos I did with 720/60 to 24p (with a bit of slow motion in there) mostly just by the fast and uglier method of dropping into another timebase, but a few shots were done with the slower and better conversion process (Sorry for the lower quality vimeo encodes, didn't have my super high standards back then, probably don't want to full-screen):
Blackout
Veteran
@Ben
Those aren't bad at all but I definitely see it and it 'urks' me. It looks like you shot with a faster shutter. I have become master of the hand held stabalized with my body non jello full HD 1920 x 1080p shooting and I'll never go back to 60p unless I absolutely have to for the live look like on some red carpet interview stuff that I sell to TMZ or something.
@Ralph Again... so you can get it looking a little better with after effects but why bother with all that post processing when there is a handy dandy great mode of shooting right on your camera! I really don't get it. I have 24pn checked and I never get issues. OOoonnnnnceee in a blue turtle moon over the multi-verse I get a crash.. but it's so rare that it's a non issue for the incredible better quality.
Those aren't bad at all but I definitely see it and it 'urks' me. It looks like you shot with a faster shutter. I have become master of the hand held stabalized with my body non jello full HD 1920 x 1080p shooting and I'll never go back to 60p unless I absolutely have to for the live look like on some red carpet interview stuff that I sell to TMZ or something.
@Ralph Again... so you can get it looking a little better with after effects but why bother with all that post processing when there is a handy dandy great mode of shooting right on your camera! I really don't get it. I have 24pn checked and I never get issues. OOoonnnnnceee in a blue turtle moon over the multi-verse I get a crash.. but it's so rare that it's a non issue for the incredible better quality.
I was only pointing out a high quality conversion option available in post, should someone ever need it. That's all.
No 1080p or below video camera can resolve more than 1000 lines of resolution. The difference between shooting 1080p and 720p is no more than a few hundred lines at the most. In reality 720p is close enough to 1080p for all but the largest displays(ie: the ones you use).
Do you ever use the 720p @ 60 FPS mode for slow motion? 1080p @ 24 FPS is not very good for that at all. Playing the 720p back at 40% speed gives you perfect 24 FPS slow motion.
Ben_B
Veteran
Because, again, with the unhacked GH1 the 720/60p codec is a bit more robust. You also have the ability to overcrank (although the 1/60th shutter ideal for 24p is less than ideal for overcrank) if you want to. Useful for run and gun shooting.
But yes, I almost exclusively shoot 1080/24p on my GH13 and shoot it exclusively on my GH2. I used 1080/24p on my GH1 for narrative work though, where I could control the environment and could retry or rework shots that broke up.
THanks a few more questions:
1. I imported my 1080 24p video right into After Effects and I don't see those lines I get when I view the MTS file in VLC player so does After Effects remove the pulldown automatically?
2. Even though I shot at 1080 at 24p, it shows the framerate as 29.97 when I add to render queue - do I need to convert to 23.976 in comp settings before I add to the render queue?
3. I also notice in all my videos a small section on the bottom of the video that's distorted a bit - it's not too noticeable but it's there.
1. I imported my 1080 24p video right into After Effects and I don't see those lines I get when I view the MTS file in VLC player so does After Effects remove the pulldown automatically?
2. Even though I shot at 1080 at 24p, it shows the framerate as 29.97 when I add to render queue - do I need to convert to 23.976 in comp settings before I add to the render queue?
3. I also notice in all my videos a small section on the bottom of the video that's distorted a bit - it's not too noticeable but it's there.
Ben_B
Veteran
wanderer63
Active member
I have used Mpeg Streamclip to convert 50p tp 25p with no problems.........