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Aerial Videography and Photography Aerial Video/Photo from R/C Helicopters


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Old 03-01-2010, 01:11 PM   #1
loprestty
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Default video stabilization issues

Hi after a couple of flight tests I still have vibration on my videos, I have try new blades, head speed like 1580, 1650, 1780 the more the worst.
I have a t rex 600 strech to 700 ( new)
scorpion 4035-500
helicomand 3d
airfoil cam mount
panasonic luminix gh1
when I fly w/o the base it seems I have no vibration but no luck when I record.
I any way to process the videos for stabilization?
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Old 03-01-2010, 02:46 PM   #2
c4v3man
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May be a good idea to post one of your bad videos on vimeo so everyone can see what you're dealing with.
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Old 03-01-2010, 02:59 PM   #3
SeismicCWave
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Quote:
Originally Posted by loprestty View Post
Hi after a couple of flight tests I still have vibration on my videos, I have try new blades, head speed like 1580, 1650, 1780 the more the worst.
I have a t rex 600 strech to 700 ( new)
scorpion 4035-500
helicomand 3d
airfoil cam mount
panasonic luminix gh1
when I fly w/o the base it seems I have no vibration but no luck when I record.
I any way to process the videos for stabilization?
You did not mention anything about balancing your blades? Or your flybar? Or your flybar paddles? Just because something is "new" doesn't mean something is balanced.
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Old 03-01-2010, 03:26 PM   #4
RocketSled
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Quote:
Originally Posted by loprestty View Post
when I fly w/o the base it seems I have no vibration but no luck when I record.
I can't for the life of me figure out what you mean here. If you don't have vibration when you fly w/o the "base", then why don't you just fly without the base? (of course, not knowing what "base" is, the answer it probably obvious to you).
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Old 03-01-2010, 03:30 PM   #5
loprestty
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Default balance

I did not check tha balance on blades I have a new set of cy fai 710 and I asume that they were balance out the box regarding the flybar not sure how to do that.

base = camera rig = camera mount

I'm prosseccing the video to pots it in a bit!
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Old 03-01-2010, 05:46 PM   #6
loprestty
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Old 03-01-2010, 10:36 PM   #7
Weithy
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maybe the shake is coming from the pilots fingers, having caused a car crash must make you shake a bit !
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Old 03-02-2010, 07:17 AM   #8
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Looks like the tail gyro gain maybe up to high. Or also not mechanically adjusted to zero. Try it in non heading hold and see if there is an improvement.
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Old 03-02-2010, 12:26 PM   #9
cbergen
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I concur, the video is clear, but it looks to me like your tail is jumping side to side.

Are you running in governor mode? Try fixed endpoints as the motor may be surging slightly, trying to maintain the HS, which then causes the tail to kick.
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Old 03-02-2010, 06:15 PM   #10
c4v3man
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Make sure you aren't using zoom... It almost looks like you are since the shaking is small but choppy. I'd also hope you aren't that close to a wreck... Seems like tail shake is typically captured more smoothly. What lens are you using? Also, the GH1 uses optical image stabilization, correct? Have you tried turning that off? I've heard that the image stabilization can't keep up sometimes with fast vibrations and causes problems.

Just observations, I'm no expert.
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Old 03-02-2010, 11:49 PM   #11
loprestty
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End points check!
Tail giro is not hunting in flight, I'm using the one from the heli command.

The video was record with the 14-140 lens no zoom the automatic stabilization is also off , I also try wide angle 7-14 much better but still pick up the vibration.

thanks
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Old 03-03-2010, 07:06 PM   #12
mutilatedjak
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thats not vibration...at least not high frequency....just go smoother on the sticks
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Old 03-04-2010, 05:38 AM   #13
Aaalie
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Looks to me your mount is unstable (not stiff enough). You can try mounting the camera a little forward or backward, 1cm sometimes will do the trick, so the CG off the cam as to the mount is a little different.

Good luck, hoping you will find the cause.


Kind regards,
Aldert
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