Photron FASTCAM SA7, Hardware Manual

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Chapter. 3 Recording
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3.12.4. Synchronizing the System with Other Cameras (Mixed Device
Synchronized Recording)
Using the function (frame rate synchronization recording) in the previous section, "3.12.3.
Synchronizing Multiple FASTCAM SA8 Systems(Multiple Unit Synchronized Recording)",
mixed-type synchronized recording can be performed with Photron's other high-speed cameras
(except for some older products).
Basic Process
1. Decide the master camera (the source of the synchronization signal) and the slave camera
(the camera that will operate according to the synchronization signal from the master).
Basically, by making the master camera the camera with the lowest maximum frame rate that
can be set, you can avoid setting a synchronization signal speed the slave camera cannot
receive.
2. Connect the master camera's V-SYNC output connector to the slave camera's V-SYNC input
connector with a BNC cable, select the synchronization signal output polarity on the master
camera, and then set the slave camera to be operated by that signal.

For camera types that can perform synchronized recording or for detailed instructions on making
the settings, contact Photron at the contact information in "7.1. Contact Information"