Pentax Silkypix K-500, Operating Manual

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When combining two external flashes
Combining two or more external flashes (AF540FGZ, AF360FGZ or
AF200FG) or using an external flash in combination with the built-in flash
allows multiple flash photography (contrast control sync flash
photography). This is based on the difference between the amounts
of light discharged from multiple units.
1
Connect the external flash to the camera indirectly.
Refer to p.260 for details.
2
Set the sync mode for the external flash to contrast-control-
sync mode.
3
Confirm that both the external flash and built-in flash are fully
charged and then take a picture.
When using multiple external flashes or using an external flash with the built-in
flash, P-TTL is used for flash control.
Using the Contrast Control Sync Flash
The AF200FG must be combined with the AF540FGZ or AF360FGZ.
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K-500.book Page 261 Friday, June 14, 2013 2:29 PM