![background image](/i/pentax/164612/pentax-af-540-fgz/h/pentax-af-540-fgz-092.png)
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Flash modes
P-TTL auto, TTL auto, auto, manual.
Flash output
compensation
In P-TTL mode, -3.0 to +1.0 levels (0.5 step increments)
Flash output setting
Wireless master, slave: (1/1
➝
2/3
➝
1/2
➝
1/3)
Manual: (1/1
➝
1/2
➝
1/4
➝
1/8
➝
1/16
➝
1/32
➝
1/64)
Flash sync mode
Leading curtain sync, Trailing curtain sync, Contrast control sync, High-speed sync.
Wireless flash
(Control system) Optical pulse transmission
(Wireless position) Master (M), control (C), slave (S)
(Channels) 1 to 4
Compatible modes: P-TTL, auto (A), manual (M)
Effective range: Approx. 4 m (When set to SL 1. According to our testing conditions.)
Bounce flash
Vertical and horizontal bounce possible, click stops provided, lock provided at 0°.
Rightward: 0°, 30°, 60°, 90°, 120°, 150°, 180°
Leftward: 0°, 30°, 60°, 90°, 135°
Upward: 0°, 30°, 45°, 60°, 75°, 90°
Downward: 0°, -10°
Power saving
Automatic power-off: After approx. 3 min. of non-operation with the power (ON). 6
minutes in Auto. After 1 hour in the wireless mode.
Quick power on: By pressing the camera’s shutter release button halfway
Red-eye reduction
Operates with autofocus cameras equipped with red-eye reduction feature.
Modeling flash
Modeling button (MODELING) discharges flash consecutively for 1 second.
Wide-angle panel
Catchlight panel
Pull out manually and flash zoom position sets to 20mm.
Pull out manually.
LCD panel illumination
LCD panel illumination button (LIGHT) illuminates the LCD panel for about 10 sec. or press
the button again to turn it off.
Power source
Four AA batteries, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6))
Optional external power source: TR Power Pack-3
Dimensions and weight
76 mm (W) × 142 mm (H) × 107 mm (T) (3.0'' × 5.6'' × 4.2'')
380 g (13.4 oz.) without batteries
AF540FGZ_OPM_ENG.book Page 90 Friday, January 14, 2011 12:44 PM