"Stuttering" problem with HMC150 footage
by Daniel Schultz
on
Oct 16, 2009 at 1:51:31 am
I'm using HMC150 footage on FCP 6.0.6 on a new macbook pro, 8 gigs ram.
I notice a problem when panning or an object is moving across the screen...the movment is not smooth, it skips and jumps, seemingly randomly. FCP is set to pro res 422, and I set QT to High Performance in preferences. It still does that. It concerns me because the problem is not there when using similar footage (1080/30p) from a Sony XD CAM. That footage looks smooth, both in FCP and quicktime.
Am I doing something wrong? I really hope it's not a flaw of this camera? Too late to return it, and I love it otherwise!
Re: "Stuttering" problem with HMC150 footage by Noah Kadner on Oct 16, 2009 at 2:58:41 am
As in frame skipping- meaning your hard drive is not fast enough to play back Pro Res. Or as in strobing- meaning you shot fast moving motion too fast or without sufficient shutter.
Re: "Stuttering" problem with HMC150 footage by Tash Glenn on Oct 16, 2009 at 5:13:46 am
I believe i zoomed out too fast because it happens with two shots and the rest of the video looks fine, i slowed the clip down 75% and I tried smoothcam filter too but that didnt look good either...any other suggestions?
Re: "Stuttering" problem with HMC150 footage by Daniel Schultz on Oct 16, 2009 at 10:27:05 am
It's not the stobing issue, because I took care to pan very slowly. It's the skipping. Would it be a hard drive issue? I ordered the 7200 rpm hard drive for the 17" macbook Pro. I thought that would be fast enough. I also have an external 7200 ESATA drive, but haven't been using it, because it's convenient to edit without hooking up to it.
But why would the problem happen on the HMC150 footage and not on the other HD footage from the Sony?
Re: "Stuttering" problem with HMC150 footage by Daniel Schultz on Nov 3, 2009 at 11:20:53 am
Hi Noah,
I tried playing back using the ESATA external drive, and I'm still having the same problem. The scene is of a school bus, rather close up, moving from one side of the screen to the other. If you care to take a look, the video's playing on our website at http://www.scholastic.com/administrator. It's one of the early scenes in the video within the first minute.
Interestingly, I had a videographer shoot a similar scene of other school busses. He shot on SD, not sure what the camera was, but it was a pro SD model of some sort. I believe their both 30p. His footage of the schoolbus moving through the frame is smooth--no stuttering.
What do you think? If you had a chance to look at the link/footage I sent, do you think it's just a matter of being too close to a large moving object, thereby giving the effect of panning too quickly? And if that's the case, why would an SD camera (inferior in quality to the HMC150 I assume) not have that problem?
