SteadiHub
2005Operating forum

Achieving dynamic balance on EFP steadicam rigs through component modifications

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

What the thread found

  • Dynamic balance requires matching the weight distribution between front and rear of the steadicam, often necessitating additional weight on the monitor bracket to offset camera body weight at the back.
  • A spreadsheet-based calculation tool (available from Tiffen or other sources) allows operators to input component weights and measurements, then determine exactly how much weight to add and where to place it for proper balance.
  • Custom monitor brackets can integrate recording devices or frame line generators to add functional weight forward rather than using inert lead weights.
  • Battery modules designed to mount on the lower junction box enable carrying multiple Anton Bauer batteries, which serves both as extended power and as a means to adjust weight distribution for balance.
  • Vest modifications including thicker ABS plastic replacements, additional back straps, and reinforced front spars improve rigidity and control of the rig.
  • Custom electronics work on junction boxes can consolidate multiple functions like lens control, accessory power distribution, and camera power outputs.
  • Lightweight LCD monitors (one pound or less) from consumer electronics may be too light to achieve balance without additional weight additions.

Depends on

  • The described setup was from 2005 and included older equipment models; current components and their weights may differ significantly.
  • One participant mentioned homemade modifications using hobby shop lead weights attached with velcro, but provided no guidance on optimal quantities or placement methods.
  • The suggestion to use the dynamic balance primer PDF was noted as helpful for understanding principles, but the actual calculation was not completed during the thread.
  • Some proposed solutions like custom battery modules or specialized mounting brackets involved estimated costs that were not provided.

Parts

Monitor Bracket, Low Mode

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