24p questions

Richard Hunter · April 18th, 2005, 02:02 AM

Hi Jay. I don't think the section in the Canon manual is written with DVD in mind, so when you mention DVD, you are no longer quoting from the Canon manual. There are good reasons (very well explained in this thread) for using Advanced mode if you are going to TV via 24p timeline and DVD, so your statement is not really very accurate after all.

Richard

Zia Basith · April 19th, 2005, 11:46 PM

Hi guys, I recently bought a Canon XL2 and shooting with 24p fps. I wanted to find out what shutter speed should I use for 24p fps? Anyone please,
Thanks,
ZIA

Josh Bass · April 19th, 2005, 11:48 PM

I'm gonna ahead and say 1/48.

Patrick King · April 20th, 2005, 12:01 AM

Quote:

Originally Posted by Josh Bass

I'm gonna ahead and say 1/48.

Ding, ding, ding! Josh wins the first lightening round with the 'most correct' of many 'correct' answers. What do we have for Josh today?

We have a lovely assortment of spam, lens cleaning wool, and 5 lbs of pan motion grease.

Matthew Nayman · April 20th, 2005, 05:52 AM

It's also funny cause your name is Pat, and many-a gameshow host is named Pat...

What do we have for them Pat?!

Abou the shutter speed? 1/48 is standard film shutter speed (1/48th of a second, 24 frames a second... 24x2=48) however, if you use a shorter shutter spee dyou can acheive the gladiator (stutter) effect of no motion blur. I think it looks cool.

Kevin Kocak · April 20th, 2005, 09:02 AM

For that and other fun facts about 24p read this article.
http://www.adamwilt.com/24p/index.html#24pRecording

Also good for the most stubborn cases of insomnea!
Back to you Pat!

Patrick King · April 20th, 2005, 09:45 AM

Zia,

Sorry to be so flip in my response...it was LATE. I'll see if I can actually help you now instead of just having sport with the response from another forum member (and Josh, no offense intended, you we thinking the same thing I was: 1/48th).

Here is a DV Info article discussing the topic: Achieving a Filmlook with Digital Video

And Sony has a good description of 24p in a Whitepaper, obviously slanted toward use of 24p in their product: 24p.pdf

Matthew Nayman · April 20th, 2005, 11:59 AM

Oh Pat, No offense was intended. Sorry I was also quite tired and I thought your response was humourus.

Matt

Kevin Kocak · April 20th, 2005, 12:53 PM

Well now you guys are making me feel bad about my attempt to continue the humor!

Matthew Nayman · April 20th, 2005, 12:59 PM

It's Okay Kevin, no one takes you seriously anyway.

Josh Bass · April 20th, 2005, 01:13 PM

None of you can top me 'cause I still answered first, and no one will ever take that away from me.

Matthew Nayman · April 20th, 2005, 03:01 PM

Takes it away...

Mark Errante · April 28th, 2005, 12:34 AM

Ok so heres a question. I shot in 2:3 and have been editing in vegas in a 24p timeline. I now want to render it down to a new avi. What should I use 2:3 or 2:3:3:2? I then will go to mpeg for DVD.

Also, if I stay 2:3 which apparently eats up more space...how much are we talking here? At this ponit Iv learned my lesson and will always shoot 2:3:3:2 from now on but what is best for my project at hand as far as best quality?

thanks!

Barry Green · April 28th, 2005, 01:50 AM

If you're staying in the 24p realm, stick with 2:3:3:2.

Rendering out to 2:3 causes the frames to need to be uncompressed and split and then re-compressed. Rendering out 2:3:3:2 causes the frames to be directly copied with no uncompression.

2:3:3:2 is really superior for just about any purpose, except for editing on a 60i timeline. However, neither version takes up more space, they take up exactly the same amount of space. But 2:3:3:2 is optimized for 24p extraction and 24p editing.

Mark Errante · April 28th, 2005, 07:27 AM

So 2:3:3:2 even though I shot it all at 2:3 on my XL2? Also, this is a side question. Does anyone know what the DVX100s use. Not the A's the first modle. The shoot Ive been editing is with 3 dvx and one xl2.

Thanks again all. Id be dead in the water with out this site.

April 19th, 2005, 11:46 PM	#227
Zia Basith New Boot Join Date: Apr 2005 Posts: 23	need shutter speed info for 24p fps! Hi guys, I recently bought a Canon XL2 and shooting with 24p fps. I wanted to find out what shutter speed should I use for 24p fps? Anyone please, Thanks, ZIA

April 19th, 2005, 11:48 PM	#228
Josh Bass Slash Rules! Join Date: Apr 2002 Location: Houston, Texas Posts: 5,472	I'm gonna ahead and say 1/48. __________________ The Bass' camerawork The Bass on IMDB

April 20th, 2005, 09:45 AM	#232
Patrick King Major Player Join Date: Jul 2004 Location: Enterprise, AL Posts: 857	Zia, Sorry to be so flip in my response...it was LATE. I'll see if I can actually help you now instead of just having sport with the response from another forum member (and Josh, no offense intended, you we thinking the same thing I was: 1/48th). Here is a DV Info article discussing the topic: Achieving a Filmlook with Digital Video And Sony has a good description of 24p in a Whitepaper, obviously slanted toward use of 24p in their product: 24p.pdf __________________ Fear No Weevil!

April 20th, 2005, 01:13 PM	#236
Josh Bass Slash Rules! Join Date: Apr 2002 Location: Houston, Texas Posts: 5,472	None of you can top me 'cause I still answered first, and no one will ever take that away from me. __________________ The Bass' camerawork The Bass on IMDB

April 18th, 2005, 02:02 AM	#226
Richard Hunter Trustee Join Date: Dec 2004 Location: Lipa City Batangas, Philippines Posts: 1,110	Hi Jay. I don't think the section in the Canon manual is written with DVD in mind, so when you mention DVD, you are no longer quoting from the Canon manual. There are good reasons (very well explained in this thread) for using Advanced mode if you are going to TV via 24p timeline and DVD, so your statement is not really very accurate after all. Richard

April 20th, 2005, 05:52 AM	#230
Matthew Nayman Major Player Join Date: Feb 2005 Location: Toronto Posts: 917	It's also funny cause your name is Pat, and many-a gameshow host is named Pat... What do we have for them Pat?! Abou the shutter speed? 1/48 is standard film shutter speed (1/48th of a second, 24 frames a second... 24x2=48) however, if you use a shorter shutter spee dyou can acheive the gladiator (stutter) effect of no motion blur. I think it looks cool.

April 20th, 2005, 09:02 AM	#231
Kevin Kocak Regular Crew Join Date: Dec 2004 Location: Tampa, Fl Posts: 149	For that and other fun facts about 24p read this article. http://www.adamwilt.com/24p/index.html#24pRecording Also good for the most stubborn cases of insomnea! Back to you Pat!

April 20th, 2005, 11:59 AM	#233
Matthew Nayman Major Player Join Date: Feb 2005 Location: Toronto Posts: 917	Oh Pat, No offense was intended. Sorry I was also quite tired and I thought your response was humourus. Matt

April 20th, 2005, 12:53 PM	#234
Kevin Kocak Regular Crew Join Date: Dec 2004 Location: Tampa, Fl Posts: 149	Well now you guys are making me feel bad about my attempt to continue the humor!

April 20th, 2005, 12:59 PM	#235
Matthew Nayman Major Player Join Date: Feb 2005 Location: Toronto Posts: 917	It's Okay Kevin, no one takes you seriously anyway.

April 20th, 2005, 03:01 PM	#237
Matthew Nayman Major Player Join Date: Feb 2005 Location: Toronto Posts: 917	Takes it away...

April 28th, 2005, 12:34 AM	#238
Mark Errante Regular Crew Join Date: Jan 2005 Location: St. Louis MO Posts: 62	Ok so heres a question. I shot in 2:3 and have been editing in vegas in a 24p timeline. I now want to render it down to a new avi. What should I use 2:3 or 2:3:3:2? I then will go to mpeg for DVD. Also, if I stay 2:3 which apparently eats up more space...how much are we talking here? At this ponit Iv learned my lesson and will always shoot 2:3:3:2 from now on but what is best for my project at hand as far as best quality? thanks!

April 28th, 2005, 01:50 AM	#239
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	If you're staying in the 24p realm, stick with 2:3:3:2. Rendering out to 2:3 causes the frames to need to be uncompressed and split and then re-compressed. Rendering out 2:3:3:2 causes the frames to be directly copied with no uncompression. 2:3:3:2 is really superior for just about any purpose, except for editing on a 60i timeline. However, neither version takes up more space, they take up exactly the same amount of space. But 2:3:3:2 is optimized for 24p extraction and 24p editing.

April 28th, 2005, 07:27 AM	#240
Mark Errante Regular Crew Join Date: Jan 2005 Location: St. Louis MO Posts: 62	So 2:3:3:2 even though I shot it all at 2:3 on my XL2? Also, this is a side question. Does anyone know what the DVX100s use. Not the A's the first modle. The shoot Ive been editing is with 3 dvx and one xl2. Thanks again all. Id be dead in the water with out this site.