Sony FX3 Timecode Sync: Setup and Requirements

Before you start

Timecode sync on the Sony FX3 works only with a compatible timecode source connected through the camera’s multi/micro USB port or another port that accepts a Sony timecode adapter. The FX3 does not generate timecode input from a standard audio cable or an app alone. Check that the source device lists Sony camera support and can output the frame rate your project uses.

This is a local camera setup. You do not need an online account, cloud service or network connection to synchronize timecode between the FX3 and a connected device. File naming and timecode metadata are handled by the camera during recording.

Step-by-step instructions

• 1. Turn off the camera before connecting the timecode adapter or cable.
• 2. Connect the compatible timecode device to the FX3 using the appropriate Sony adapter cable.
• 3. Turn on the external timecode source first and set it to the correct timecode mode and frame rate.
• 4. Turn on the FX3 and open the camera menu.
• 5. Go to the timecode settings area, typically under the shooting or display menu, and set timecode input or source to the external device.
• 6. Confirm that the camera’s frame rate matches the timecode source; mismatched rates can cause drift or incorrect metadata.
• 7. Exit the menu and check that the camera displays incoming timecode instead of free-run or record-run timecode.

Menu names can vary depending on the FX3 firmware version. If the external timecode option is unavailable, check for a required firmware update and confirm that the connected adapter is recognized by the camera.

Check the output

Record a short clip and import it into editing software that can display timecode metadata. The clip should start at or near the timecode shown by the external source, not at zero each time. Compare the displayed start timecode against the source device while both are running.

If your editor only shows clip duration, look for a metadata panel that reveals the recorded timecode track. Some lightweight players hide timecode by default.

Common problems and next steps

• If the FX3 timecode display does not change, verify the cable and adapter are fully seated and that the source is sending timecode before the camera is turned on.
• If the camera ignores the external timecode, recheck the timecode input/source setting and the camera’s recording frame rate.
• If timecode drifts during a long take, confirm that both devices use the same frame rate and that the external source remains powered and connected.
• If the editor shows mismatched start timecode, re-import the file after checking that the software reads the FX3 timecode track rather than assigning its own start time.

For multi-camera work, repeat the same frame-rate and connection check on every camera before recording. A shared timecode source does not fix differences in shutter, resolution or audio settings; it only aligns timecode metadata across recording devices.