Pentax ist - Manual (Page 120)

118
USING EXTERNAL FLASH
Using P-TTL Auto Flash Mode with the AF360FGZ
Use this flash mode with the AF360FGZ flash unit.
The optimum flash amount is discharged to match the subject’s
brightness.
P-TTL auto flash, which pre-fires the flash using the 16-segment
metering, allows more precise control.
P-TTL is available with external wireless flash mode.
1. Remove the hot shoe cover F
K
from the camera.
2. Attach the flash unit to the hot shoe.
3. Turn the external flash ON.
4. Set the flash mode switch to P-TTL auto.
5. Confirm that the flash is fully charged.
6. Focus on the subject and take a picture.
✍
MEMO
• The P-TTL is available with the AF360FGZ flash unit only. When other
than the AF360FGZ flash unit is set, set the camera into the TLL flash
mode.
• When the flash is ready (fully charged), the will light in the
viewfinder when the shutter release button is pressed halfway down.
• If is lit in on the LCD panel, the external flash also discharges
automatically. If the subject is bright enough, the flash does not
discharge (therefore, may not suitable for daylight-sync shooting).
• Never press the flash pop up button when any external flash unit is
attached to this camera. The built-in flash will pop up and strike the
external flash. If you want to use any external flash and built-in flash at
the same time, see page 124.
• Read the operating manual of the flash unit for more details.