Photron Fastcam SA5, Руководство по оборудованию

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Chapter. 3 Recording
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3.5.7. RANDOM CENTER Mode
RANDOM CENTER mode is a trigger mode, similar to RANDOM mode, where each time a trigger is
input only a predetermined number of frames are saved to memory. The difference between this
mode and RANDOM mode is that in RANDOM mode the number of specified frames are recorded
directly after the trigger signal, whereas in RANDOM CENTER mode, at the timing of the trigger
signal, the frames before and after the trigger remain in the recording memory. For example, this
function is convenient for a subject which is an irregular and repeated phenomenon which can have
a trigger output produced for each cycle or occurrence, and you want to check the action before and
after the trigger timing.
The number of frames recorded each time the trigger is input can be set as
desired, in one frame increments, from one frame to the maximum of all the recordable frames
available.
Setting the RANDOM CENTER mode frame count
Setting the frame count in RANDOM CENTER mode is the same as setting the frame count for RANDOM
mode.
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For how to setup of RANDOM Mode, refer to “3.5.5. RANDOM Mode”, page 30.
Setting the RANDOM CENTER mode record count
The number of trigger inputs that can be accepted in RANDOM CENTER mode is a maximum of 10. Set
the number of trigger inputs in advance, and the recording operation can be ended when that amount of
trigger inputs is finished.