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-   Canon XL and GL Series DV Camcorders (https://www.dvinfo.net/forum/canon-xl-gl-series-dv-camcorders/)
-   -   24p questions (https://www.dvinfo.net/forum/canon-xl-gl-series-dv-camcorders/34265-24p-questions.html)

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.


Zia Basith April 19th, 2005 11:46 PM

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,

Josh Bass April 19th, 2005 11:48 PM

I'm gonna ahead and say 1/48.

Patrick King April 20th, 2005 12:01 AM


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.

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

Patrick King April 20th, 2005 09:45 AM


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.


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?


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.

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