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Sony XDCAM EX Pro Handhelds
Sony PMW-300, PXW-X200, PXW-X180 (back to EX3 & EX1) recording to SxS flash memory.


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Old March 2nd, 2008, 09:58 AM   #1
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1080p/ 720p

So I guess a light bulb finally went off for me regarding 1080p vs:720p and motion judder.
Since purchasing the EX1, I been looking at footage on our Sony Bravia 42' lcd that was shot in 1080p 24fps and thinking, "gee, this is pretty jerky".
Then I tried the 720p 24fps and it behaved exactly like a piece shot in film. Thinking that the 1080p was troublesome I have now finally realized (DUH) that our Sony Bravia does not support 1080p only 1080i and 720p, hence the jerky movement. (DUH again).
So I did a test between the 2 for resolution. My findings were the 1080p (as expected) was much clearer...to the extent that a brown dog hair on a white sofa almost appeared twice the thickness of 720p at 10 feet away, full zoom.
My question becomes, If I originate in 1080p 24fps with the unlikely chance that I will take a piece out to film, is it better to shoot in 1080p and downconvert in FinalCutPro to 720p for Blu Ray as opposed to originating in 720p? My guess would be yes, if for nothing more than the ability to re-frame in post? And from an obsolete stand point.....is there any hint that blu-ray will be supporting 1080p in the near future and my 2 year old Bravia will be old tech junk?
Best, Craig
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Old March 2nd, 2008, 10:28 AM   #2
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Ehhm,
Where have you heard that Blu-ray disc doesn't support 1080p?
Do you mean 1080p with 48p, 50p and 60p?

Blu-ray already supports:
1080p 24p
1080p 30p
1080i 60i
1080i 50i


regards Dennis
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Old March 2nd, 2008, 10:59 AM   #3
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Quote:
Originally Posted by Craig Hollenback View Post
Since purchasing the EX1, I been looking at footage on our Sony Bravia 42' lcd that was shot in 1080p 24fps and thinking, "gee, this is pretty jerky".
Then I tried the 720p 24fps and it behaved exactly like a piece shot in film. Thinking that the 1080p was troublesome I have now finally realized (DUH) that our Sony Bravia does not support 1080p only 1080i and 720p, hence the jerky movement. (DUH again).
Do you see the same issue playing 1080P blu-ray movies?

So I take you're burning both versions, 720P and 1080P to blu-ray and comparing?

One thing I've seen with just about all of these HD cameras, don't trust motion when hooking your camera's video out direct to you monitor.
My burned blu-ray discs look different (more fluid) than veiwing via component out. I saw the same thing with my JVC HD100.
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Old March 2nd, 2008, 12:16 PM   #4
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Originally Posted by Steven Thomas View Post
Do you see the same issue playing 1080P blu-ray movies?

So I take you're burning both versions, 720P and 1080P to blu-ray and comparing?

One thing I've seen with just about all of these HD cameras, don't trust motion when hooking your camera's video out direct to you monitor.
My burned blu-ray discs look different (more fluid) than veiwing via component out. I saw the same thing with my JVC HD100.
That's just it....I had the EX1 connected directly to the monitor. I have yet to burn a Blu-ray (I have a Mac) and don't own a Blu-ray player yet. So then the issue would be...will feature films be released in 1080p on Blu-ray and will they display the judder on a 1080i monitor that the camera does when connected directly to a non-1080p monitor or does the player somehow convert to 1080i?

If that's the case, once again, I guess it will be ok to shoot/post in 1080p and deall with the down-convert or whatever in post.
Thanks, Craig
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Old March 2nd, 2008, 12:37 PM   #5
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No worries Craig. The player will play 1080i from 1080P footage when hooked up via 1080i monitor.

If you have Sony Vegas 8b, you can burn 30 minute Blu-ray (ps3) on a standard DVD. Just remember to select m2v when encoding, this will bring up the 1080 24P template (25mbps). Also, you have to select "Dolby" for audio.

This looks great and will show you how well your final will look played back on an HD set.

I saw the same judder via direct out, but looks like good 24P when burned and played back.
Again, I saw the same issue with my HD100.
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Old March 2nd, 2008, 05:51 PM   #6
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Dennis, Blu-Ray doesn't support 1080 30p - only 24p
At least last I checked. Please correct me if i'm mistaken

Thanks
Paul
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Old March 2nd, 2008, 06:01 PM   #7
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Originally Posted by Paul Dhadialla View Post
Dennis, Blu-Ray doesn't support 1080 30p - only 24p
At least last I checked. Please correct me if i'm mistaken

Thanks
Paul
Yep, you're right.
Blu-ray only supports 1920x1080@24p, 50i or 60i

http://www.blu-raydisc.com/Section-1...890/Index.html
regards Dennis
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