External Sync {Readout Per Trigger; Figure 40. Free Run Timing Diagram; Figure 41. External Sync Timing Diagram - Princeton Instruments ProEM+ EMCCD User Manual

Chapter 6 Advanced Topics 79

Figure 40. Free Run Timing Diagram

External Sync {Readout Per Trigger}

In this mode, each frame in a sequence requires a trigger. Each frame is exposed for the
length of time entered into the software and is then read out. If a trigger arrives during the
exposure-readout of the previous frame, it is ignored (see Figure 41). For a sequence of
one frame, bulb mode and trigger-first mode are the same. The shaded areas denote
the idle time between exposures.

Figure 41. External Sync Timing Diagram

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