Pentax IST DS2 Digital Camera User Manual


 
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Function Reference
Combining two or more AF360FGZ or using AF360FGZ in combination
with the built-in flash allows twin flash photography (contrast-control-synch
flash photography). This is based on the difference between the amounts
of light discharged from two units.
1 Connect the external flash to the camera indirectly. (p.158)
2 Set the sync mode for AF360FGZ to the Contrast-Control-Synch mode.
3 Turn the mode dial and set the exposure mode to e, b, c or a.
4 Confirm that both the external flash and built-in flash are fully charged
and then take the picture.
Contrast-Control-Sync Flash
Do not combine with accessories that have a different number of contacts
such as a Hot Shoe Grip as a malfunction may occur.
Combining with flashes from other manufacturers may cause equipment
breakdown. We recommend using the PENTAX dedicated automatic
flashes.
When using two or more external flashes and the Contrast-Control-Synch
mode is set on the external master flash unit, the flash output ratio is 2
(master unit) : 1 (slave units). When external flash is used in combination
with the built-in flash, the flash output ratio is 2 (external flash) : 1 (built-in
flash).
When using two AF360FGZ units or an AF360FGZ unit with the built-in flash,
P-TTL is used for flash control.
The fastest flash synchronization speed is 1/90 second in the Contrast-
Control-Synch mode.