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Flash modes P-TTL auto, TTL auto, auto, manual.
Flash exposure
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 Pentax 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) fires 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 Size-AA batteries × 4, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6))
Optional external power source: TR Power Pack-3 (Upcoming product)
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
00_AF540FGZ.book Page 90 Monday, April 10, 2006 11:42 AM