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HD Questions 60i vs 30p vs 24p

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iLLbiLLy
Posts: 2865 - Karma: 2,631
i'm pretty new to hd and i'm trying to decide which recording setting to go with.  my camera can do 1080 60i, 1080 30p and 1080 24p.  I would like to film progressive scan so should i go with the 1080 30 p or 24p.  My gut reaction is to go with the 24p because it's the cameras native format and my editing software doesn't seem to have any templates for the 30p.  Also how will the the 24 p compare to the 30p and 60 i for slow motion shots?
-thanks
Oct 20 2009 12:18PM
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*Fujative*
Posts: 8554 - Karma: 183
http://lmgtfy.com/?q=HD+Questions+60i+vs+30p+vs+24p
Oct 20 2009 12:40PM
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eheath
Posts: 61603 - Karma: 123,069
30p is more of a digital motion and 24p is more of film motion. Stick to 30p, not 24p unless you want to and know what you are doing.
Oct 20 2009 3:57PM
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[~_~]
Posts: 20239 - Karma: 1,273
24p can't be used for slow motion. There simply isn't enough information to stretch the shot. 30p (shot with 1/120 shutter) can be slowed down 80% to get a nice progressive semi-slow motion, and 60i can be interpolated and stretched to 60f in post.

I normally film follows with 24p but I suggest 30p for skiing, since you can keep it regular speed or slow it down a bit. I really don't see a single use for 60i...except maybe reporting the news.
Oct 20 2009 4:08PM
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[~_~]
Posts: 20239 - Karma: 1,273
Also, what kid of camera are you using? To edit 30p/60i footage, change the timeline settings to 29.97 fps instead of 24 fps.
Oct 20 2009 4:13PM
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thisandthatfilms
Posts: 7714 - Karma: 526
24p = filmy/artsy look, shitty slowmo, smoother lines and colors

30p = better than 24p for action, slomo is decent

60i = best slomo out of the 3, interlaced so you will have to deinterlace in post
Oct 20 2009 5:10PM
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dergblerp
Posts: 1303 - Karma: 77
60i is actually much better for slow motion because it's easier to interpolate.  Because you're shooting 60 half frames instead of 30 progressive frames, you are able to use the upper and lower fields to create much better looking faux 60p than you would if you started with 30p. 
Oct 20 2009 5:54PM
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KarmaInitiative
Posts: 2028 - Karma: 174
well... it can be used for slow motion... anything can... its just comes out worse the slower the framerate

IMO
24p - cinematic stuff
30p - stuff for the interwebz
60i - stuff for DVD

also if your doing 24p and want slow motion, you can just shoot 30p. Simply converting 30p to 24p will give you %80 speed
Oct 20 2009 5:58PM
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[~_~]
Posts: 20239 - Karma: 1,273
Eh kinda. 30p slowed down 80% looks MUCH cleaner than 60i that has been interpolated into 60f. You can choose between much sharper semi-slow motion with the 30p route, or even slower footage (60f) that looks kinda shitty with the interpolated 60i route.
Oct 20 2009 8:42PM
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thisandthatfilms
Posts: 7714 - Karma: 526
what i said....


/thread
Oct 20 2009 8:51PM
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[~_~]
Posts: 20239 - Karma: 1,273
well of course you can, but what's the point of slowing something down if it's going to be choppy?

Also, it doesn't matter if you shoot 24p/30p/60i for DVD. It all comes out on the same 29.97fps timeline.
Oct 20 2009 8:56PM
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holyDINOSAURS
Posts: 7038 - Karma: 639
yeah people forget to mention that 60i interpolated halves your resolution. it depends what you're using it for.

Courtesy of Newschoolers.com

in that video theres alot of 60i interpolated. web stuff you dont notice it too much
Oct 20 2009 9:02PM
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[~_~]
Posts: 20239 - Karma: 1,273
Even with web stuff it's really noticable to me. with the 30p method I can get equal sharpness and quality as shooting 24p, but using 60i just softens the image like a motherfucker.
Oct 20 2009 9:10PM
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eheath
Posts: 61603 - Karma: 123,069
Yeah, people like me and landis will notice, but you are right some people will not.
Oct 20 2009 9:31PM
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holyDINOSAURS
Posts: 7038 - Karma: 639
*most.

but im not arguing. i know. it sucks. its soft as shit and you start seeing fragments if you focus on solid colours like the sky.
Oct 21 2009 12:09AM
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eheath
Posts: 61603 - Karma: 123,069
True most wont notice.
Oct 21 2009 12:29AM
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iLLbiLLy
Posts: 2865 - Karma: 2,631
word helpful stuff guys
Oct 21 2009 1:00AM
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omckee
Posts: 942 - Karma: 1,136

I find that 30p is great for all around skiing, 60 for some, 30 for most. Just what I think

Oct 23 2009 11:50AM
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rudolph
Posts: 633 - Karma: 975
yeah, this is true, people just don't analyze shit like this unless you really are into filming
Oct 23 2009 10:32PM
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factory81
Posts: 3967 - Karma: 63
Bump, this thread has some great info. Just got a camera that records in 1920x1080/60i and this answered a few questions.

30p for me.
Jan 15 2010 2:18PM
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Bentley@DOSMedia
Posts: 1410 - Karma: 1,827
If your camera shoots in 24pn then it can be pretty sick. If your trying to shoot 24p, then your using some crazy pull downs (3:2 or 2:3, I spaced on which one) and you might have some post issues that looks like your shots are interlaced. Really depends on the camera.

You can actually slow down 24pn quite nicely if you know how too. A guy I film with shoots a lot of 24pn and we have gotten some stuff down in the 70 and 60% range with it looking pretty smooth. You just have to be very smooth and consistent with any camera movements when shooting 24p. Not only are you shooting with less fps, but your bitrate is also slower.

30p is just your stock video progressive format. Its your normal look and you can manipulate the footage a decent amount. If your not going for the film look I would suggest 30p.

60i can be annoying because you will have to de interlace the shots in post and I would imagine that would be quite annoying. You can slow down 60i pretty good, but your dealing with de interlacing.

If I were you I would test the formats out and see what you like the best.

Also, it really does depend on what camera you are using.

Hope that helps.

Jan 15 2010 4:15PM
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factory81
Posts: 3967 - Karma: 63
Panasonic HDC-SD10

http://www.engadget.com/2009/06/08/panasonics-hdc-sd10-and-hdc-tm10-hd-camcorders-get-us-price-re/

Its just a consumer HD camera. I think I am going to make my movie in 1920x1080/60i using Pinnacle Studio 14 HD. Export it as an MT2S file

Then take that and bring it down to 1920x1080/30p

Im not really doing anything fancy with slowing down the video. The footage is from a car, and a lot of it is wobbly.
Jan 15 2010 7:52PM
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