Frame Rate advice..24P 30P 1080i ?

F

firehawk

Veteran
Hi everyone.
I'm brand new to the world of shooting HD and wanted some advice. I'll be getting new cameras hopefully soon.
I assumed I'd be shooting most things progressive HD but after looking at the formats Blu Ray supports, I see only 24P is supported.
So I wondered what was recommended and what people most generally use for different jobs. I was never a fan on 24P on my DVX100B due to the jerkiness. Is it still that way with the newer cameras? I figure I will shoot most things HD and downconvert when necessary unless I know for certain I will only need the project in SD.

What do you recommend for the below scenarios? (I have guessed on some)
-----------------
-Sports/Automotive events for web? 60P
-Sports/Automotive events for DVD or BluRay?
-Weddings for DVD? Shoot 1080i and downconvert to 480i or shoot 24P and downconvert to 480P
-Weddings for BluRay?
-Theater/Dance for DVD and BluRay?
-Corporate for web? 30P or 59.94P
-Corporate for DVD?
-Corporate for BluRay?
-Legal Depositions in SD?
 
Sports/Automotive events for web? 720p60 or 1080p30 (there's no good way to get true 60p on the web outside of making people download a file, but if you want to slow-motion anything, 60p is good for that)
Sports/Automotive events for DVD or BluRay? 1080i60
Weddings for DVD? 1080p24 (down-convert only when creating the final DVD)
Weddings for BluRay? 1080p24
Theater/Dance for DVD and BluRay? For theater I would stick with 1080p24. For Dance, 1080i60. (keep in mind there is no 1080p30 on the Blu-ray spec)
Corporate for web? 1080p30. 720p60 is overkill for corporate talking heads.
Corporate for DVD? 1080p30.
Corporate for BluRay? 1080p24 or 1080i60.
Legal Depositions in SD? 480i60
 
24p is jerky if you whip pan, or use a high shutter speed. Other wise it has a film like motion blur. The good news most new cams have all the frame rates you need. From what you listed, I would look at the new ac130. or Canon xf100.
 
David W. Jones said:
You are mistaken about BR only supporting 24p.
Click to expand...
I meant only 24P and not 30P or 60P is supported regarding 1080 recording. Sorry I didn't state that very clearly. I originally thought I could record everything 1080 at 30P or 60P until I saw 24P was as high as it supported. Thats what I meant.
 
maranfilms said:
24p is jerky if you whip pan, or use a high shutter speed. Other wise it has a film like motion blur. The good news most new cams have all the frame rates you need. From what you listed, I would look at the new ac130. or Canon xf100.
Click to expand...
Thank you. I am looking at the AC130 and Canon xf100 as well as the AC160 and what I really want, the HPX250.
 
Gary Huff said:
Sports/Automotive events for web? 720p60 or 1080p30 (there's no good way to get true 60p on the web outside of making people download a file, but if you want to slow-motion anything, 60p is good for that)
Sports/Automotive events for DVD or BluRay? 1080i60
Weddings for DVD? 1080p24 (down-convert only when creating the final DVD)
Weddings for BluRay? 1080p24
Theater/Dance for DVD and BluRay? For theater I would stick with 1080p24. For Dance, 1080i60. (keep in mind there is no 1080p30 on the Blu-ray spec)
Corporate for web? 1080p30. 720p60 is overkill for corporate talking heads.
Corporate for DVD? 1080p30.
Corporate for BluRay? 1080p24 or 1080i60.
Legal Depositions in SD? 480i60
Click to expand...

I see you said 24P for weddings. Is that to give it more of a film look? Does 1080i give it more of a video look like I'm used to with 480i? I was thinking 24P would be the way to go.
About 1080p30 for corporate DVD.. Can you author DVDs with 30p?
Also another dumb question, but if I recorded in 1080i, how friendly does it convert to 24p in post if I needed to match it with something or needed to convert it after the fact for some reason?

Thank you again to everyone. I appreciate all the great help on this forum.
 
firehawk said:
I see you said 24P for weddings. Is that to give it more of a film look? Does 1080i give it more of a video look like I'm used to with 480i? I was thinking 24P would be the way to go.
Click to expand...

Not only a film-look, but it gives an almost dream-like feeling given the way motion blur is resolved in 24p. However, I've seen some good wedding videos done in 30p. I would stay way from 1080i and 480i for weddings at all costs. Both 1080i and 480i have the same video look, the only difference being in resolution.

About 1080p30 for corporate DVD.. Can you author DVDs with 30p?
Click to expand...

Yes you can.

Also another dumb question, but if I recorded in 1080i, how friendly does it convert to 24p in post if I needed to match it with something or needed to convert it after the fact for some reason?
Click to expand...

It's possible, but you won't get good results. If you plan on shooting in 1080i or 480i, plan on keeping it that way up to delivery.
 
Blu-ray can unofficially support 1080p/30 via a false interlaced flag in the video stream. Technically speaking, it's a hack, but it's been used before, and is similarly used to broadcast 30p content on TV.
 
These are the official Bluray specs:


1920×1080 29,97-i 16:9
1920×1080 25-i 16:9
1920×1080 24-p 16:9
1920×1080 23,976-p 16:9
1440×1080 29,97-i 16:9 (anamorph)
1440×1080 25-i 16:9 (anamorph)
1440×1080 24-p 16:9 (anamorph)
1440×1080 23,976-p 16:9 (anamorph)
1280×720 59,94-p 16:9
1280×720 50-p 16:9
1280×720 24-p 16:9
1280×720 23,976-p 16:9
720×480 29,97-i 4:3/16:9 (anamorph)
720×576 25-i 4:3/16:9 (anamorph)

http://en.wikipedia.org/wiki/Blu-ray_Disc

And yeah, you can trick it into 30p with the false flag.
 
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