11. The built-in flash is an electronic quench-type flash. It can provide a full output of about
340 zonal-lumen seconds (ZLS) to illuminate a scene or it can be shut down early to
provide less light to the scene. The way the camera decides to provide full or partial light
output will be discussed later.
12. Whether or not the flash provides full output, the main capacitor delivers the same amount
of energy. Therefore, if the flash is ordered to shut down early, some means must be found
to dissipate the remaining energy in the circuit. This remaining energy is diverted through a
thyristor (TH1) on the strobe board.
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