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2005Follow Focus forum

Connecting Cinema Products/Heden hybrid motor with onboard amplifier to follow focus system

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

What the thread found

  • The Cinema Products/Heden hybrid motor features an integrated amplifier on the motor unit itself.
  • A defective position potentiometer will cause the motor to run continuously without stopping.
  • Replacing the broken potentiometer with the correct 10kΩ part restores normal motor operation.
  • Motors with onboard amplifiers can be connected directly to a Seitz breakout box without requiring a separate external amplifier.
  • The hybrid motor is suitable for pulling iris control on film work.

Depends on

  • The motor was purchased used on secondary market, so its history and full specifications are unclear.
  • Specific pin configurations and cable combinations for 4-pin and 5-pin Lemo connectors were not definitively documented.
  • Only one user reported successful operation with Seitz equipment; broader compatibility remains untested.
  • The original potentiometer dimensions were not replaced with identical specifications in the repair attempt.

Parts

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