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Author Topic: Vibration isolation for video camera  (Read 6176 times)

John Cardo

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Vibration isolation for video camera
« on: December 04, 2015, 04:31:39 pm »

Greetings, I am currently trying to figure out a solution to a slight problem I have ran into.

I would like to record an EDM event with two cameras, One at FOH on a tripod facing the stage and one on the DJ table facing the DJ.

The issue I have run into in the past is due to the massive amounts low end, the image always ends up blurry and goes out of focus when the kick hits.

What I was thinking of doing was to purchase two sets of these pads http://www.bhphotovideo.com/c/product/233741-REG/Meade_07368_Vibration_Isolation_Pads.html However I'm not exactly sure if those would work the best.

Would anyone happen to have an suggestions?

Thanks
John Cardo
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Michael Lascuola

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Re: Vibration isolation for video camera
« Reply #1 on: December 07, 2015, 05:09:36 pm »

I have had some success using manual focus cameras with VR - this may be out of your price range, however.
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John Cardo

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Re: Vibration isolation for video camera
« Reply #2 on: December 07, 2015, 07:16:37 pm »

I have had some success using manual focus cameras with VR - this may be out of your price range, however.

I probably should have mentioned the cameras I'm using, they're Canon XF-100's so not exactly that light weight. I already know the cam at FOH is going to get destroyed from the vibration so the pads on the tripod most likely wont do much but it's the cam on the DJ table that I'm most concerned about keeping from vibrating too much
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Tom Bourke

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Re: Vibration isolation for video camera
« Reply #3 on: December 07, 2015, 08:16:44 pm »

You need mass suspended by a spring.  The resonant frequency needs to be outside of the frequencies your having problems with.

Try a cement block sitting on foam or bungees.
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John Cardo

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Re: Vibration isolation for video camera
« Reply #4 on: December 07, 2015, 08:55:15 pm »

You need mass suspended by a spring.  The resonant frequency needs to be outside of the frequencies your having problems with.

Try a cement block sitting on foam or bungees.

I was thinking about using Foam too. I could do that at FOH but on the DJ table It would look.....strange.
As for thickness does 2 inch foam sound reasonable?


John
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Tim McCulloch

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Re: Vibration isolation for video camera
« Reply #5 on: December 07, 2015, 09:22:00 pm »

What's visually enticing enough to watch a DJ push "play"?  His/her dance?  The posse?  /snark
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Tom Bourke

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Re: Vibration isolation for video camera
« Reply #6 on: December 07, 2015, 09:43:10 pm »

What's visually enticing enough to watch a DJ push "play"?  His/her dance?  The posse?  /snark
It's the look!

2" foam may work, it depends on how stiff vs how much weight.  You really need to have the mass on the camera and suspend it from something springy.  Take a look at how shock mounts for microphones work.
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Len Zenith Jr

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Re: Vibration isolation for video camera
« Reply #7 on: December 07, 2015, 09:52:21 pm »

I like the suspended brick method. To make it look interesting you could suspend it with some spring steel like this commercial unit:
http://www.stratus-productions.com/pov-vibration-isolator. Then mount the camera firmly to the brick.

That would dampen any vibration being transferred from the table. I wonder how much of that vibration is due directly to the innards of the camera vibrating from the high SPL. An isolation box made out of something dense ( thick MDF, concrete, etc) might be necessary to shield against that. A plate of glass, a bag of quickset concrete, couple different size small boxes to use as molds and some weather stripping to join the 2 halves and silicon to mount the glass could mold a box overnight. The molded box would take the place of the brick and would just need to be suspended by spring steel.
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John Cardo

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Re: Vibration isolation for video camera
« Reply #8 on: December 07, 2015, 09:56:02 pm »

Tim: I'm more concerned as to how three cinder blocks are going to look sitting on the table next to the DJ. Although thinking about it more I could just wrap those in some kind of black fabric like an old t shirt or something.

Tom: I was going to use some convoluted foam and stack two sheets together for a 4 inch thick piece.

Looking at how shock mounts work, this one http://i.imgur.com/Xc6pMT2.jpg seems like its a bunch of bungees and doing something like that for a camera could end up being rather complex.

Looking back on the vibration damping pads all they really seem to be is hard rubber disks for tripod legs to rest on and looking at some videos on youtube It doesn't seem they help very much.
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John Cardo

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Re: Vibration isolation for video camera
« Reply #9 on: December 07, 2015, 10:01:36 pm »

I like the suspended brick method. To make it look interesting you could suspend it with some spring steel like this commercial unit:
http://www.stratus-productions.com/pov-vibration-isolator. Then mount the camera firmly to the brick.

That would dampen any vibration being transferred from the table. I wonder how much of that vibration is due directly to the innards of the camera vibrating from the high SPL. An isolation box made out of something dense ( thick MDF, concrete, etc) might be necessary to shield against that. A plate of glass, a bag of quickset concrete, couple different size small boxes to use as molds and some weather stripping to join the 2 halves and silicon to mount the glass could mold a box overnight. The molded box would take the place of the brick and would just need to be suspended by spring steel.

Looking at that, Perhaps using three industrial size springs sitting on foam and with the tripod legs attached to the springs could help? 
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ProSoundWeb Community

Re: Vibration isolation for video camera
« Reply #9 on: December 07, 2015, 10:01:36 pm »


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