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Dynamic Balance with C300 Mk3


Isaac J. E. Garcia
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Hello Steadifam,

I am having a hard time achieving dynamic balance on an aero 30 flying a c300 mk3. I think the obvious problem is that the monitor and the microphone holder swing out very far to either side. I was curios if anyone had any solutions to this interesting issue? I was thinking of a way to rig the monitor directly on top of the camera with a noga arm or something similar in fashion.  I primarily fly this setup with the zephyr as well with canon EF or cinema primes. Any insight would be greatly appreciated. Thanks! 

IMG_1933.HEIC

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Isaac-

Because you have the base and monitor one one plane with the Aero 30 (a necessary thing) and if the camera/mic holder & accessories balance the rig statically, then you are most of the way there for dynamic balance. You don't need to worry about the mic holder. The challenge comes with trying to move the camera and batteries forward or backwards, opposite each other, and getting in static balance again, and then spinning it fairly slowly (like a real panning shot) and seeing if it is in dynamic balance.  I'm not sure what choices you have for moving the battery in and out on the Areo 30. If both the battery and monitor positions are fixed (in and out-wise, if that's a word) then you are kind of stuck. If the battery moves (or even the monitor) in and out, you should be able to find dynamic balance pretty quickly. From the setup in the pix, I'd suspect the camera c.g. should be just a little behind the axis of the central post, maybe .25 inches.

Jerry

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  • 2 weeks later...
On 8/21/2020 at 2:03 PM, Jerry Holway said:

Isaac-

Because you have the base and monitor one one plane with the Aero 30 (a necessary thing) and if the camera/mic holder & accessories balance the rig statically, then you are most of the way there for dynamic balance. You don't need to worry about the mic holder. The challenge comes with trying to move the camera and batteries forward or backwards, opposite each other, and getting in static balance again, and then spinning it fairly slowly (like a real panning shot) and seeing if it is in dynamic balance.  I'm not sure what choices you have for moving the battery in and out on the Areo 30. If both the battery and monitor positions are fixed (in and out-wise, if that's a word) then you are kind of stuck. If the battery moves (or even the monitor) in and out, you should be able to find dynamic balance pretty quickly. From the setup in the pix, I'd suspect the camera c.g. should be just a little behind the axis of the central post, maybe .25 inches.

Jerry

Jerry, thank you so much for your quick response and advice! That really helped me out a ton on set. I was able to scoot the battery closer to the post and march the monitor out. It wasn't perfect but it definitely helped a lot. I am not sure if links work on here but here is the final video if you are curious to see what it looked like. Happy to hear feedback if you have any as well! 

 

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