What the thread found

• Older camera models including SR2, Arri 3, and BL require constant contact mode rather than momentary contact for run activation through wireless follow focus systems.
• The SR2 uses a different pin configuration on its 11-pin Fischer connector compared to later models like SR3, which may affect compatibility with wireless control units.
• When troubleshooting a non-responsive wireless follow focus connection, verify signal transmission by listening for an audible click at the receiver when toggling the run switch, and check that the motor on the camera body attempts to turn.
• The 11-pin Fischer connector on SR2, Arri 3, and BL cameras assigns pin 7 to run function, pin 9 to ground, and pin 11 to 12VDC output.
• Possible causes for wireless follow focus failure include a faulty cable between the receiver and camera remote switch, a defective remote switch on the camera, or plugging into a power-output-only Fischer connector instead of the correct one.
• Testing with a hardwired standard remote switch can help isolate whether the problem lies in the wireless system or in the camera's receiver connection.

Depends on

• The specific pin configuration for SR2 was provided by forum members but not independently verified in this thread.
• Discussion focused on SR2, Arri 3, and BL models; other camera models may have different requirements.
• Troubleshooting steps were suggested but outcomes of implementing them were not reported back in the thread.

Gear in this thread

BFD

Parts

Follow Focus

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