Pentax K-7 Operating Manual page 57

Using the optional external flash AF540FGZ, AF360FGZ, AF200FG or
AF160FC enables a variety of flash modes, such as P-TTL auto flash
mode, depending on the external flash being used. See the chart below for
details.
(_/ Available #: Restricted
x: Not available)
Built, in i AF540FGZ AF200FG
flash AF360FGZ AF160FC
Red-eye reduction flash _ _
Automatic flash discharge _ _
After the flash is fully charged, the camera
automatically switches to the flash sync _ _
speed.
Aperture is automatically set in P and Tv
modes. *_/ *_/ *_/
Auto check in the viewfinder x x x
P-TTL auto flash (appropriate sensitivity:
_'1 _'1 _'1
ISO 100 to 3200)
Slow-speed Sync _ _
Flash exposure compensation _ _
AF Assist Light of the external flash x _ x
Trailing Curtain Sync .2 ,_/ ,_/ x
Contrast-control-sync flash mode #*3 V #*4
Slave flash x ,_/ x
Multiple flash x x x
High-speed flash sync x ,_/ x
Wireless flash #*4 V*5 x
"1 Available only when using DA, DA L, D FA, FA J, FA, F or A lens.
*2 Shutter speed of 1/90 seconds or slower.
*3 When combined with the AF540FGZ or AF360FGZ, 1/3 of the flash discharge can be
output by the built-in flash and 2/3 can be output by the external flash.
*4 Available only when combined with the AF540FGZ or AF360FGZ.
*5 Multiple AF540FGZ or AF360FGZ units or a combination of an AF540FGZ!AF360FGZ
unit and the built-in flash is required.
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Flashes with reversed polarity (the center contact on the hot shoe is minus) iiiiiiiiiiiiiiiiiiiiiiiiii
cannot be used due to the risk of damaging the camera or flashi