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Contents
FOR THE SAFE USE OF YOUR FLASH
UNIT................................................................. 1
Precautions for Your Flash Unit ....................... 3
Cautions Regarding Batteries............................. 4
Names of Parts................................................... 6
Major bundled items ........................................... 9
LCD Panel Indicator.......................................... 10
Inserting the Batteries ..................................... 12
Using the Optional External Power Source ...... 13
Mounting to Camera......................................... 14
Turning the Power On...................................... 15
Charging the AF540FGZ with the
Optional External Power Source................... 16
Switching the Charging Mode........................... 16
Auto Power Off Function................................... 17
Quick Power On Function................................. 17
Select Button (S)/Adjustment
Dial Functions............................................... 18
Procedure......................................................... 18
Camera Format and Flash
Coverage Angle............................................ 20
Using the Flash Modes .................................... 25
P-TTL Auto Flash.............................................. 26
TTL Auto Flash................................................. 27
Auto Flash......................................................... 28
Manual Flash.................................................... 30
Using the Sync Mode....................................... 32
Leading Curtain Sync Mode ............................. 33
Trailing Curtain Sync Mode .............................. 33
High-Speed Sync Mode.................................... 34
Contrast Control Sync Flash............................. 36
Advanced Functions........................................ 38
Wireless Mode.................................................. 38
Slave................................................................. 50
Slave Mode Setting........................................... 52
Slow-Speed Sync Photography........................ 53
Bounce Flash.................................................... 54
AF Spotbeam.................................................... 56
Wide-Angle Panel and Catchlight Panel........... 57
Modeling Flash/Test Flash................................ 58
Connecting the AF540FGZ with the
Extension Cord............................................. 59
Supported Functions for PENTAX
Cameras ........................................................ 60
Cameras that Support Each Flash Mode.......... 60
Cameras that Support Each Sync Mode .......... 62
Cameras that Support Wireless Mode.............. 63
Cameras that Support Slow-Speed Sync
Mode............................................................. 64
Functions Related to Each Flash Mode............ 64
Sync Mode Restrictions.................................... 72
Precautions When Photographing with a
Slave Flash................................................... 79
Flash Effective Range...................................... 80
Calculating the Flash Effective Range.............. 80
Guide Number (GN).......................................... 82
P-TTL and TTL Auto Flash Effective Range..... 85
Optional Accessories....................................... 87
Specifications................................................... 88
Warranty Policy ................................................ 91