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EFP base connector purpose and potential repurposing

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

What the thread found

  • The D-sub connector on the bottom of the EFP was designed to connect to follow focus receiver systems like Seitz or WC 4 units via motorcable lemos connectors running up the post.
  • The connector can be repurposed to carry power, video, and other signals like tally light feeds to external devices such as program monitors.
  • Dynamic balancing of an EFP sled is possible through modifications including repositioning the battery bracket rearward using spacers, replacing the upper junction box, and adding secondary battery mounts.
  • The pin configuration of the base connector has been documented in CP manuals for the Steadicam 3 junction box wiring.

Depends on

  • No detailed pin assignments were provided in this thread discussion.
  • The specific wiring diagram details mentioned were referenced but not included in the thread text.
  • Modifications described were performed on individual rigs and results may vary depending on setup and implementation.

Parts

Monitor Bracket, Follow Focus

Same gear or parts

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  4. 2026Powering everything from the sled: voltage, current, and why the two get confusedOperator practice
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