Interesting artifacts in video

G

garym

Member
I was shooting some video and noticed (Vegas 9.0) that the footage appears with what I can only describe as the old tape transport "hiccups". Although not as severe, but that's just what it reminds me of.

I have two HMC150's and they both do it. I was able to reduce the problem by using manual focus, but it's still there. It's kind of disturbing that this camera is having a tough time with moving images and staying clean. I was shooting some stand-up comics at a club and these guys walked around alot with a very contrasted background. The camera was on a tripod, so it wasn't me shaking the camera.

I read in the manual that the camera might do this if the CAMERA is moved quickly, but nothing about the subjects - although according to Einstein - what's the difference?

Anybody have this sort of trouble? Should I be setting EVERYTHING manually? I'm wondering if it's an "automatic" problem...
 
The camera has no problems whatsoever. Play the footage back from the cards, on a monitor, and you'll see that it's working just fine.

It's more than likely that the playback in your NLE is what's stuttering.
 
The problem continues to exist after rendering and burning to DVD. I understand the NLE can have realtime playback issues.

When you say "Play the footage back from the cards" - I understand what you mean, but how is that accomplished? Right now, I just copy the file from the card onto my PC's hard drive.

Also, if the subjects are not moving around a lot, I don't get this effect - or it hasn't been so noticable until now.

I just bought a copy of your HMC150 book - I'm looking forward to it.
 
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garym said:
When you say "Play the footage back from the cards" - I understand what you mean, but how is that accomplished? Right now, I just copy the file from the card onto my PC's hard drive.
Click to expand...

Use VLC, media player classic or some other player to play the .mts files off the card.

Try playing them also on another computer. If this problem is persisting on your machine but not on others AND it shows on a transcoded file or DVD, then it could be a corrupt codec issue on your machine.

If it is showing on other high speed computers then it could be a camera issue. I would suspect the former though.
 
Hello, I've been reading this forum for a long time--learned much and appreciate the the resource. Never posted here before.

I've been using my new HMC-150 since March, loving it, and learned something -- here, in fact -- that may or may not be useful to you:

If you keep the OIS engaged while panning on a tripod you will sometimes see random small jumps in the image. This was a surprise to me after years of shooting on a DVX100 where you never saw this. I tended to leave the OIS engaged all the time, handheld or tripod mounted, but have had to get used to switching it on and off with the HMC.

Don't know if this is relevant to your problem but thought I'd mention it.

Regards,

David DeWitt
Austin, TX
 
Yep, the longstanding advice since the first HVX200 came out is: turn OFF the OIS when using it on a tripod. Because what you've observed, is exactly what can happen.
 
dajotx said:
If you keep the OIS engaged while panning on a tripod you will sometimes see random small jumps in the image.
Click to expand...

Barry_Green said:
Yep, the longstanding advice since the first HVX200 came out is: turn OFF the OIS when using it on a tripod. Because what you've observed, is exactly what can happen.
Click to expand...

I will try turning this off when I get to the office tomorrow - thanks for the suggestion!
 
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