Pentax K20D manual Using an External Flash Optional, 143

Using an External Flash (Optional) 143

Using the optional external flash AF540FGZ, AF360FGZ or AF200FG 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.

(Yes: Available #: Restricted No: Not available)

Flash	Built-in	AF540FGZ	AF200FG
Camera Function	Flash	AF360FGZ
Red-eye reduction flash	Yes	Yes	Yes
Automatic flash discharge	Yes	Yes	Yes
After the flash is charged, the camera
automatically switches to the flash sync	Yes	Yes	Yes
speed.
Aperture is automatically set in e (Hyper-
program) mode and b (Shutter Priority)	Yes	Yes	Yes
mode.
Auto check in the viewfinder	No	No	No
P-TTL auto flash (appropriate sensitivity:	Yes*1	Yes*1	Yes*1
100 to 1600)
Slow-speed sync	Yes	Yes	Yes
Flash exposure compensation	Yes	Yes	Yes
AF illuminator	Yes	Yes	No
Trailing curtain sync*2	Yes	Yes	No
Contrast-control-sync flash mode	#*3	Yes	#*5
Slave flash	No	Yes	No
Multiple flash	No	No	No
High-speed flash sync	No	Yes	No
Wireless flash	#*5	Yes*4	No

*1 When using DA, D FA, FA J, FA, F or A lens.

*2 Shutter speed of 1/90 sec. 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 Multiple AF540FGZ or AF360FGZ units or a combination of an AF540FGZ/AF360FGZ unit and the built-in flash is required.

*5 Only available when combined with the AF540FGZ or AF360FGZ.

5

Using the Flash