Photron Fastcam SA3, Hardware Manual

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Chapter. 3 Recording
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3.17.4. Synchronizing the System with Other External Devices (Frame Rate
Synchronized Recording)
With the system, in addition to the frame rate preset in the system, a function has been provided
where you can receive a synchronization signal externally, set the frame rate with that frequency,
and record.
In this way, for example, the system can be synchronized with a dynamic body that spins at 1,350
revolutions a second to conduct high-speed recording at 1,350 fps. This can open up broad
applications that were unavailable until now.
Conceptual Diagram of External Synchronized Recording

When conducting frame rate synchronization recording with the system, the signal that can be
input must meet the following conditions.
■ TTL level, positive polarity or negative polarity
■ 60 Hz (50 Hz for PAL) to 120,000 Hz
System Settings
Frame rate synchronization signal settings on the system are made with the "LCD remote controller
(optional)" or PFV.
 For PFV (Standard)
1. Verify that the camera mode is in LIVE mode (the image displayed is passed through from the
camera). If the system is in a mode other than LIVE mode, check "Live" on the camera
control panel.
2. Select I/O on the left tree from "Camera Option" on the camera control panel.
3. Set SYNC IN to "ON OTHERS POS/NEG".
SYNC
SLAVE
1,350Hz
Sync (Pulse)
Generator
1,350fps
SYNC IN