Photron Fastcam BC2 HD, Hardware Manual

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3. Recording
36
3.15. Using External Synchronization Signals
The system provides an external synchronization mode to synchronize to an external signal. By
using an external synchronization signal, you can record with the camera synchronized to other
external measurement devices or lighting. The procedure and precautions for using the external
synchronization signal are explained below.
3.15.1. Inputting an External Synchronization Signal
The system can accept the input of an external synchronization signal. See the chart below for
external synchronization input settings.
Menu display Contents
Signal (input signal
conditions)
OFF
Sets external synchronization off, operates
independently.
None
ON CAM POS
Synchronizes to a positive polarity signal from an
external device (including other Photron products). TTL level, positive
polarity
ON CAM NEG
Synchronizes to a negative polarity signal from an
external device (including other Photron products). TTL level, negative
polarity
ON OTHERS
POS
Synchronizes to a positive polarity signal from an
external device (including other Photron products). TTL level, positive
polarity
ON OTHERS
NEG
Synchronizes to a negative polarity signal from an
external device (including other Photron products). TTL level, negative
polarity
• When using "ON CAM POS/NEG", you must match the camera's frame rate to the frequency of the
external device in advance, but you can use "3.7 VARIABLE Setting".