Ricoh PENTAX K-3 Mark III Faq page 36

・Flashes with the reversed polarity (the center contact on the hot shoe is minus) cannot be
used due to the risk of damaging the camera and flash.
・Do not combine with accessories that have a different number of contacts, such as Hot Shoe
Grip, as a malfunction may occur.
・Combining with flashes from other manufacturers may cause equipment breakdown.
・With the AF540FGZ, AF540FGZll, AF360FGZ or AF360FGZll, you can use the high-speed
sync flash to discharge a flash and take an image at a shutter speed faster than 1/200
seconds.
Set the exposure mode to Tv, TAv or M.
・By using two or more external flashes (AF540FGZ, AF540FGZll, AF360FGZ or AF360FGZll),
you can use the wireless mode to shoot in the P-TTL flash mode without connecting the
flash unit with a cord. In this case, set the camera channel on the external flashes
・You can set the flash sync speed in [X Mode Sync Speed] of the C 5 menu.
・You can connect an external flash to the camera with a sync cord by using the X-sync
socket. R emove the sync socket 2P cap to connect a sync cord to the X-sync socket.
Q: Does it have a built-in flash?
A: There is no built-in flash.
Q: Can the sync socket be used for professional flashes?
A: Yes, it can. However, some professional flashes use extremely high voltages. The use of such flashes may
cause the camera to breakdown. Before using the flash, check its specifications in advance.
Q: Can wireless flash photography be used?
A: You can use the [wireless mode] that perform a P-TTL shooting without connecting the flash each other
by the code in combination of an external flash (AF540FGZ II, AF360FGZ II, AF540FGZ, or AF360FGZ).
Setting of channels is done in the external flash side.
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