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36084 Posts in 3751 Topics by 4305 Members - Latest Member: pepe pompin March 12, 2010, 01:41:13 AM
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Author Topic: Adding weight to a light cam setup rig  (Read 272 times)
Charles King
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Adding weight to a light cam setup rig
« on: January 19, 2010, 02:49:47 PM »

Another addition to the HBS 101 forum. Most of us know how hard it is to get a light cam to settle quietly when flying. We all know that the more weight the better the stability or the better your inertia of your sled will be. But most of us do not usual own a heavy camera to experience a full applied inertia like those Steadicam operators flying heavier cameras. So what can we do to fake the extra weight, for example the Sony EX3 or the even smaller Canon GL-1? Simple solutions is to add weight plates or use a weight cage. Now, you should remember, add the weight as high as possible or in other words, above the camera. A steel cage or plates are best in this situation.

For examples see this thread: http://hbsboard.com/index.php/topic,3879.msg33785.html#msg33785

As one Steadicam operator said:

...the mass center of equivalent camera ( big camera or small with additional weights ) mast be about 4- 5 inches upper above top stage level . The best variant is to use weight cage . You may use some variant of rising plate under your weight plate with small camera. by Andrey Yazydzh
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Charles King
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Jon Fairhurst
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Re: Adding weight to a light cam setup rig
« Reply #1 on: January 19, 2010, 04:48:35 PM »

No only do we want the weight high, but at the extremes. Weight at the center of the plate isn't as valuable as weight at the corners or edges. That helps not just the roll and tilt damping, but the pan damping as well.

I'm definitely planning a weight cage on my rig. It will have a six inch height. Not only will it help with my steadirig, but it will help my 516 tripod as well. It expects 19 lbs at five inches above the tripod, and does not have an interchangeable spring. Frankly, it hasn't been a big deal, as we tend to shoot short clips and edit. It would be another story if I shot day long conferences!
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Charles King
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Re: Adding weight to a light cam setup rig
« Reply #2 on: January 20, 2010, 05:23:08 PM »

Will looking forward to that cage Jon.
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Charles King
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Jon Fairhurst
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Re: Adding weight to a light cam setup rig
« Reply #3 on: January 20, 2010, 06:30:13 PM »

Will looking forward to that cage Jon.

Me too!

I won't make it for the full 19 lbs though. For short clips, I really don't care if the tripod is balanced. I'm really building it to help with steady performance.
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Charles King
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Re: Adding weight to a light cam setup rig
« Reply #4 on: January 20, 2010, 06:34:38 PM »

...I'm really building it to help with steady performance.

Well, that should be the only reason to build a cage. Definitely not for the Tripod Wink
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Charles King
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