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Stange ballancing problem


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#1 Kevin Rietveld

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Posted 01 February 2009 - 05:06 AM

Hi all,
new to this forum, and also new in steadicamworld i like to introduce myseself. I'm Kevin, a Camjo from the Netherlands and just started experimenting with a steadycam.
I have a smal ( kind a not logical against all physics problem )

I ballanced my camera and when i hold the pole vertical i have a droptime of aprox 2,5 sec, thats great i think and the cam holds stabel almost directly.
The strange part is when i turn the cam 180 degrees (exactly the same but then now lens points north instead of south) suddenly it is not ballanced anymore !?!? it tilts up a little.

Anyone any idea?

thanks
Kevin
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#2 Eric Fletcher S.O.C.

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Posted 01 February 2009 - 05:30 AM

Hi all,
new to this forum, and also new in steadicamworld i like to introduce myseself. I'm Kevin, a Camjo from the Netherlands and just started experimenting with a steadycam. I have a smal ( kind a not logical against all physics problem )

I ballanced my camera and when i hold the pole vertical i have a droptime of aprox 2,5 sec, thats great i think and the cam holds stabel almost directly. The strange part is when i turn the cam 180 degrees (exactly the same but then now lens points north instead of south) suddenly it is not ballanced anymore !?!? it tilts up a little.



What rig do you have? Sounds to me like the gimbal is not concentric with the post
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#3 Erik Brul

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Posted 01 February 2009 - 05:58 AM

I think Kevin (looking at the small avatar) has a Flycam Rig.. Like Eric says, possible a concentric problem with the Gimbal. With other rigs like the Glidecam in the past, these problems were fixed with a use of a extra shim between the yoke and the post.

But maybe you can drop this question at the HBS forum. There are more people overthere with this kind of rig.

Best, Erik
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#4 Dave Gish

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Posted 01 February 2009 - 08:41 PM

Hi Kevin,

This problem is not unusual, especially with the less expensive rigs. A friend has a Flycam, and he has this same issue. A few of the Steadicam Pilot rigs have also had this issue.

The problem has something to do with the gimbal being out of alignment. It has to be fixed by the manufacturer. With the Steadicam Pilot, you send it back to Steadicam and they fix it for free, plus pay shipping both ways. With the Flycam, I don't know how you would fix it.
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#5 Mauro Andreini

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Posted 01 February 2009 - 09:57 PM

Hi all,
new to this forum, ......The strange part is when i turn the cam 180 degrees (exactly the same but then now lens points north instead of south) suddenly it is not ballanced anymore !?!? it tilts up a little.

Anyone any idea?

thanks
Kevin



Hi Kevin,

I tend to agree with the rest of us in as much as the gimbal is the only responsible part in this.

I built my own gimbal and I’m very happy that it does not happened.

Hi quality ones are adjustable to avoid the problem


Mauro
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#6 Brian Freesh

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Posted 02 February 2009 - 03:24 AM

Huh, I've had this problem from time to time with my Flyer and always wondered about it, but it's intermittent so I never looked too closely at it. It just happened last Monday at the beginning of the 3rd day of a shoot. I'll see if I can replicate it again and then talk to Tiffen. Thanks!
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