GH3 New GH3 jitter while panning

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OldCorpse

Rockin the Boat
I did several tests of the GH3 video, and there is always extreme jitter/shudder while panning or any movement, really. It doesn't matter if it's slow or fast panning, whether on a tripod with the OIS off, or handheld with the OIS on, even at super-wide 12mm using native lumix 12-35 lens. I can see the jitter on the lcd as I film, when I play it back on the GH3, and of course on the computer. I used all default settings just as the camera was set at the factory, except I selected MOV 24P 50Mbps. I didn't change any other settings, or do anything else - just wanted to test it with factory settings. There was plenty of light. I did tests both indoor and outdoor with various detail levels in the scenery I filmed. All of them have the same extreme level of jitter while panning. If the camera is still, without moving, there is no jitter. I uploaded one brief test to vimeo to illustrate the problem:

http://vimeo.com/user19518180/gh3panningjitter

I'm curious to find out what the source of this is jitter is. I have searched around, and I see the jitter mentioned on pv and an old thread regarding the GH2 here on dvxuser. However, I have not seen any resolution to that and there seems to be no consensus. Any ideas?
 
To my eye, the video you posted has very fast pannning for 24p. Higher frame rates fill in the movement and will be smoother, but more video-like and less film-like.

I generally try to keep objects visible in pans for 6 to 8 seconds. By this I mean to say, if an object is visible at the left in my frame and I pan to the left, it doesn't disappear from the frame on the right for at least 6 seconds. Close up shots tend to make the jittering more pronounced. Try doing slower pans and see if that helps.
 
Just appears to me that its a fast pan with too high a shutter speed for 24P. Most cameras running 24P it is recommended that an object stay on screen from one side to the other for 7 seconds or more. 60i or 60P is ok for faster movements and higher shutter speeds. But edit that in a 24P timeline and you're back to the stutter motion.
 
That looks normal to me, Your going to have to get used to panning slower to rid the /jitter. Drop your speed as you pan till you see it diminish, then go with that speed. Try a rubberband to get used to it, it will smooth out the pan as well.
 
OldCorpse said:
I did several tests of the GH3 video, and there is always extreme jitter/shudder while panning or any movement, really. It doesn't matter if it's slow or fast panning, whether on a tripod with the OIS off, or handheld with the OIS on, even at super-wide 12mm using native lumix 12-35 lens. I can see the jitter on the lcd as I film, when I play it back on the GH3, and of course on the computer. I used all default settings just as the camera was set at the factory, except I selected MOV 24P 50Mbps. I didn't change any other settings, or do anything else - just wanted to test it with factory settings. There was plenty of light. I did tests both indoor and outdoor with various detail levels in the scenery I filmed. All of them have the same extreme level of jitter while panning. If the camera is still, without moving, there is no jitter. I uploaded one brief test to vimeo to illustrate the problem:

http://vimeo.com/user19518180/gh3panningjitter

I'm curious to find out what the source of this is jitter is. I have searched around, and I see the jitter mentioned on pv and an old thread regarding the GH2 here on dvxuser. However, I have not seen any resolution to that and there seems to be no consensus. Any ideas?
Click to expand...

Possibly a combination of issues:

In P Mode you'll have no idea what the camera chooses for shutter speed. Likely way to high for 24P. Would recommend choosing the correct shutter speed in Movie M mode.

As others mentioned panning too fast for 24P. On average 7-11 seconds for stationary object to cross screen. Depending on amount of zoom, pans need to be much, much slower.

Lock AF/AE so focus and exposure don't drastically change while panning.

Choose 30 or 60P. More forgiving for fast pans.

Last but not least, 50Mbps files may cause an underpowered system to drop frames when playing back.

With practice, the GH3 can give you silky smooth pans & tilts.

Good luck...
 
Thank you everybody, there's tons of good advice there. I'm a little worried about the speed of pan issue, as I didn't think those were exactly whip-pans, but something that I might realistically employ in various situations; but then again, shutter speed is surely a factor. I am going to experiment further, until I can get a handle on this. Again, thanks a bunch to each and every one of you!
 
Another suggestion I might add is getting a variable nd filter for outdoor use. You can use slower shutter speeds (40-60 suggested) while keeping your aperture (f-stop) low as well.
 
Good advice Kevin, I was thinking of that too. I had a few bucks left on an amazon card (15.00) So I thought I buy a cheap variable ND filter (neewer brand) And was shocked at the quality, I have to be honest, it's so close to my other brand name Variable which was over 150.00. I couldn't tell the difference unless I studied the screen at 400%, and then added a very small amount of post sharpening, then I couldn't see any difference. They both had a subtle amount of color cast, but nothing to bad.
 
I'm a little worried about the speed of pan issue, as I didn't think those were exactly whip-pans, but something that I might realistically employ in various situations;
Click to expand...

coming from an event / ENG background, i would agree with that. BUT this isnt that kind of camera (at least not in this scenario) you are going to be at the mercy of the 24p pan speed rule. and as others have stated most of what you posted is a good 30-50% faster than it should be for a 24p pan.

i have though read a few posts from folks who say that the gh3 is a little worse with this than the gh2 was
 
All of the advice above is sound regarding panning speed in 24p and judder and there's no question your test pans are too quick for 24p, however there may be something adding to it.

If there's a discrepancy between your footage and timeline settings you can also get stuttering.

It's worth checking those.
 
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