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Achieving static and dynamic balance on an EFP Steadicam sled

22 years old. Gear and prices may have changed since.

What the thread found

  • Static balance is achievable on an EFP sled by positioning the dovetail plate at the camera's center of gravity and adjusting gimbal height and post length until the rig is bottom-heavy and sits perfectly vertical.
  • Dynamic balance on standard EFP sleds requires aftermarket modifications that separate and allow sliding adjustment of the battery component relative to the electronics.
  • A three-second drop time when tilting from horizontal to vertical is a useful starting reference point for beginners, though this can be adjusted based on operator experience and shot requirements.
  • Drop times that are too quick cause the rig to lean during cornering and pendulum excessively, while drop times that are too long make the rig more sensitive to operator hand movements.
  • Modifications enabling dynamic balance on EFP sleds can include adjustable battery brackets and monitor arms that allow both components to slide along the post.

Depends on

  • Standard EFP sleds have limited adjustability in the sub-gimbal section and typically do not allow true dynamic balance without modifications.
  • The discussion relies on anecdotal reports of specific modifications rather than comprehensive technical documentation.
  • Aftermarket modification availability and feasibility were uncertain at the time of the discussion.

Parts

Dovetail Plate

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