View Full Version : What's Going On With My Footage?
mb72378
06-18-2009, 01:33 PM
Look towards the end of this footage. Notice towards the bottom of the screen at the line when I move the camera? I see this in both 720 24pn up to 1080 24a. I havent tried dv but.... This particular clip was coded quicktime h264. but it also does that in the editing window, before I even export. what the freak is going on? I cant catch it in a still frame though, just motion video.
http://www.appstate.edu/~mb72378/videoproblem.html (http://www.appstate.edu/%7Emb72378/videoproblem.html)
After watching it online, for some reason i dont see the line too much. But there are all sorts of jerkiness etc. Anyone else getting a really jerky playback or line up a few centimeters from the bottom of the screen? it looks like whats below the line is off line from the other footage. Im so confused.
Shane Ross
06-18-2009, 01:58 PM
I don't see anything out of the ordinary. This looks like 24p footage. I don't see any lines or jerkiness at all. Just regular 24p cadence.
Shoot 24p much?
mb72378
06-18-2009, 02:02 PM
Hmm, I have a quad core pc with 4gb ram and a crazy graphics card, but maybe its my computer?
Im getting ready to do the 48 hour film festival. You think I should shoot in 24p or maybe 60i? I dont like the harsh look of 60i but Im not sure the tradeoff is worth the lagginess of 24p. Hmm, what would you do?
Shane Ross
06-18-2009, 02:06 PM
I don't see the "lagginess" that you refer to. That is 24p. That is the "fllm look." I see that on ALL the DVCPRO HD footage I work with, as we always shoot 24p, even with the varicam. It looks fine to me.
Where is this footage STORED? What sort of hard drive? Never store your footage on your internal system drive, and USB drives won't work.
im with shane. what youre seeing is typical 24p behavior. look at just about ANY movie (feature film) and this same thing happens on fast pans.
it is funny though. when i first started shooting 24p for a client who wanted the "film look" they complained about the "jerky-ness" i finally pulled out a feature film dvd and showed them that it happened in movies too. i shoot 30p for them now.
mb72378
06-18-2009, 02:43 PM
In understand the motion blur is normal. Im not sure I am thrilled with it though. When at the movies ive never noticed motion blur like what I see on my hvx., Now I know that the HVX and what they use for high dollar films isnt remotely close, what Im daying is that I dont see how 24p makes something look more like film personally. All I see 24p doing is making me frustrated with all of my pans and tilts haha. :)
As far as not editing on the internal hard drive Im not sure I follow. I have two hard drives in my computer, one the system runs on and one for my footage. Now I DONT edit video off of the system drive but it is internal. Ive always stayed clear away from editing off of external hard drives unless you can get some super fasat external hard drive. I'd think that unless you have a really nice one that the transfer rate wouldn't be good enoug to edit HD on the fly. I might be wrong, Ive just never done it.
what youre talking about is NOT motion blur, its typically called 24p cadence or sometimes "judder"
a second internal (im guessing SATA) drive is fine for what youre doing. and is likely not a problem. i think your problem is you are expecting 24 frame footage to behave like 30 frame. and thats simply not the reality of things.
and as far as your point about staying clear of editing off external drives "unless you can get some super fast external drive" is COMPLETELY WRONG. i edit dvcproHD on single (non-raided) little $100 firewire800 drives all day long with ZERO problems.
mb72378
06-18-2009, 03:20 PM
hmm, thats cool. Ive always just edited off the internal drive the backed up on the external.
Kit Hannah
06-18-2009, 08:01 PM
What you are probably noticing is "Shearing". what kind of computer monitor do you have? maybe your graphics card is good, you may want to make sure your monitor is good and/or your graphics card is set up properly.
Kit Hannah
06-18-2009, 08:03 PM
Also, if you're in doubt, try 30p. it will give you a much more filmlike look than 60i. The 60i footage is going to look really bad and people will notice that in a film festival. Gonna look like you went out and bought a camera at Best Buy for $199.
mb72378
06-18-2009, 08:27 PM
Kit tanks for the comments. As far as my computer set up goes this is what Im working with:
Quad Core @ 2.66 Ghrz.
4GB ram
Vista
500GB Drive
1TB Drive
nVidia GeForce 9800GTX+
19" Widescreen Samsung Monitor running trough digital cable.
My graphics card is set up right and the latest drivers have been installed.
Im glad you mentioned about the 60i deal. Im doing the 48 hour film festival starting tomorrow and was seriously thinking of shooting in 1080 60i cause I was so frustrated with 24p. But Ill suck it up and do my best. Ill prob shoot at 1080 24pa since its going to be viewed at a movie theatre.
I did burn a video file to DVD and I didnt see any tearing so at least i know its in my computer output to monitor and not the camera. Thanks again.
The 60i footage is going to look really bad and people will notice that in a film festival.
though i whole-heartedly agree with you i find it funny that for the last decade or so i had to listen to clients bitch that video didnt look like film and we had to deploy all kinds of post effects to make it more "filmic" and now these doofy 240hz TVs come out that make big budget films look like they were shot on a betacam...
go figure the world...?
Steve Eisen
06-19-2009, 11:12 AM
When shooting 24p, if you have to pan, do it slowly. Same go for zooms. You are used to shooting 60i. Most moves you see in movies are done on a dolly. The lens hardly ever zooms.
Most moves you see in movies are done on a dolly. The lens hardly ever zooms.
Except for lots of low budget movies a few decades back (zooms were REALLY common in the early/mid '70s...)
mb, here is something you might want to consider. shoot in 60i then use one of the numerous "film look" / deinterlace plugins to generate the filmic look in post. thats a reasonably acceptable compromise.
mb72378
06-21-2009, 09:05 PM
Well I am back from the 48 hour film project. Its 11:03 pm. I just arrived in town and I ahve officially not slept since 9:30 am on Friday morning. Thats exactly 61 and a half hours without sleep!!!! I swear. I was in a group of 3 so we each had a lot to do. Its late. Im past tired. Ill start a new thread tomorrow with clips, footage, and info from this past weekend's festival.
Rob55
06-22-2009, 09:34 AM
I'm experiencing the same "judder", but with 1080/60i footage. As the OP mentions, I see it even in the canvas window in FCP. I've been on the phone with Apple and all they've done is have me add a de-interlacing video filter which had no effect on the judder.
mb72378
06-22-2009, 09:37 AM
Rob, what Ive noticed is that for me, Im only noticing it on my computer. Try burning it to a dvd and see if you see it on tv. Also, is there any way you can link a video that is doing it for you then we can have everyone watch it and see if it is doing it for them? It might just be something in our video playback.
Rob55
06-22-2009, 10:30 AM
Matt, I've tried exporting to DVD as well as H.264 and I experience the judder everywhere. As a side note, I'm working with AVCHD, not DVCPRO HD. Here's a link to the video clip. Be patient, it's a 23 MB clip and loads a bit slowly.
http://web.me.com/robr55/Video_Problem/Video.html