Question about dynamic balance

[Jeongseon Ahn]

Hi, I'm steadicam beginner. I'm studying and practicing with movcam knight D202.

After read steadicam primer mathmatical things, I have a question because I don't have monitor bracket which can adjust its height from the camera.

Assuming that the battery and monitor are on the same horizon and the c.g. of the camera is located in the center of the post,

as far as I understand by the steadicam primer, it's also in dynamic balance if sled is in static balance whether I add some weight bars or not on the monitor or battery side,

because the centrifugal forces will be same. am I understanding correct?

 

While, I have expierences my sled wasn't in dynamic balance even it was in static balance when it's in condition that monitor and battery were on the same horizon.

I know reality could be different by some components like focus motor or transmitter, etc. , but it's hard to understand for me.

 What should I try to?

[Jerry Holway]

if the monitor and battery c.g.'s are on the same plane, the camera c.g. should be centered over the main post, and the batteries and monitor shifted (or weight added) to get in static balance. Be sure the c.g's of all the components are on the same plane  - that is all lined up as seen from the rear or front. Don't pan fast when testing, and don't get too stressed out about perfect dynamic balance.

If the monitor is raised up from the battery c.g., then the camera will move rearwards, and the battery inwards to achieve dynamic balance. A higher monitor is better for viewing, and tends to promote better posture - no leaning over to see the image!

[Jeongseon Ahn]

On 6/20/2023 at 5:31 AM, Jerry Holway said:

if the monitor and battery c.g.'s are on the same plane, the camera c.g. should be centered over the main post, and the batteries and monitor shifted (or weight added) to get in static balance. Be sure the c.g's of all the components are on the same plane  - that is all lined up as seen from the rear or front. Don't pan fast when testing, and don't get too stressed out about perfect dynamic balance.

If the monitor is raised up from the battery c.g., then the camera will move rearwards, and the battery inwards to achieve dynamic balance. A higher monitor is better for viewing, and tends to promote better posture - no leaning over to see the image!

Thank you for replying Sir!

You hepls me a lot with this post and your tutorial videos :)

I've realized again everything need practice always haha

Thank you again, have a nice day :)

[Xavier Mercado]

Practice makes perfect, Jeongseon.  Welcome to the community.  All the best to you!