Flash modesFlash exposure compensationFlash output settingFlash sync modeWireless flashBounce flashPower savingRed-eye reduction Modeling flashWide-angle panel Catchlight panelLCD panel illuminationPower sourceDimensions and weight

P-TTL auto, TTL auto, auto, manual.

In P-TTL mode, -3.0 to +1.0 levels (0.5 step increments)

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)

Leading curtain sync, Trailing curtain sync, Contrast control sync, High-speed-sync.

(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.)

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°

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 Operates with autofocus cameras equipped with red-eye reduction feature. Modeling button (MODELING) fires flash consecutively for 1 second.

Pull out manually and flash zoom position sets to 20mm. Pull out manually.

LCD panel illumination button (LIGHT) illuminates the LCD panel for about 10 sec. or press the button again to turn it off.

Size-AA batteries × 4, (Alkaline (LR6), Nickel-Metal Hydride (Ni-MH), or Lithium (FR6)) Optional external power source: TR Power Pack-3 (Upcoming product)

76 mm (W) × 142 mm (H) × 107 mm (T) (3.0'' × 5.6'' × 4.2'')

380 g (13.4 oz.) without batteries

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