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MAJOR SPECIFICATIONS
Type ———————————— Clip-on, TTL auto zoom flash unit with serial control
Guide No. —————————— In manual mode, six-step adjustment from 1/1 to 1/32.
Focal Length (Zooming position)
[M 1/1] [=FULL]
[M 1/2]
[M 1/4]
[M 1/8]
[M 1/16]
[M 1/32]
Flash duration (1/2 peak each)— [M1/1] flash: Approx. 1/1200 sec. Fastest duration time: Approx. 1/20000 sec.
Recycling time/Total flashes ——
Battery Type
Alkaline [LR6]
Nickel Hydroxide [Ni-MH]
Lithium [FR6]
Consecutive Discharge ———— Approx. 2 frames/sec. for 50 times, at M 1/16 output (with alkaline LR-6
batteries)
Flash Coverage Angle ———— Auto zoom enabled with autofocus compatible camera and lens
combination.
Zooming position
Vertical
Coverage
Horizontal
Coverage
*Wide-angle panel used.
58
85mm
70mm
50mm
35mm
28mm
36
33
30
25
22
25
23
21
18
16
18
16.5
15
12.5
11
12.5
11.5
10.5
9
8
9
8
7.5
6
5.5
6
5.5
5.4
4.3
4
Recycling Time
Flashes
Approx. 6 sec.
Approx. 250
Approx. 6 sec.
Approx. 160
Approx. 6 sec.
Approx. 300
85mm
70mm
50mm
35mm
28mm
24mm
20mm*
23°
26°
34°
45°
53°
60°
85°
31°
36°
46°
60°
70°
78°
98°
Color temperature —————— Daylight (Suited for daylight color film)
Effective flash range ————— Approx. 0.7 m - 5.4 m (Guide No. 30, ISO 100, f/5.6)
AF spotbeam ———————— Red beam emitted under low light or low-contrast conditions.
Compatible film speed ———— ISO 25 - 1600
[ISO 100]
Flash modes ———————— P-TTL auto, TTL auto, auto, manual.
24mm
20mm*
Flash exposure compensation — In P-TTL mode, -3.0 to +1.0 steps (0.5-step increments)
21
14
15
10
Flash amount setting ————— With wireless slave: [1/1 → 2/3 → 1/2 → 1/3]
10.5
7
7.5
5
Flash sync mode ——————— Leading-shutter-curtain sync, Trailing-shutter-curtain sync, Contrast-
5
3.5
3.6
2.5
Wireless flash ———————— [Control system] Optical pulse transmission
Bounce flash ———————— Vertical bounce possible, click stops provided, lock provided at 0°.(-10°,
Power saving ———————— Automatic power-off: After approx. 3 min. of non-operation with the power [ON],
Red-eye reduction —————— Operates with autofocus cameras equipped with red-eye reduction feature.
Modeling flash ———————— [MODELING] button fires flash consecutively for 1 second.
Wide-angle panel —————— Pull out manually and flash zoom position sets to 20mm.
Catchlight panel ——————— Pull out manually.
LCD panel illumination ———— [LIGHT] button illuminates the LCD panel for about 10 sec. or press
Power source ———————— Size-AA batteries × 4, Alkaline LR6, Nickel Hydroxide (Ni-MH), or lithium FR6
Dimensions and weight ———— 70 mm (W) × 110 mm (H) × 115.5 mm (T) (2.8'' × 4.3'' × 4.5'')
Effective range: Approx. 1 m - 7 m (According to Pentax's testing conditions.)
With wireless slave: [1/1 → 2/3 → 1/2 → 1/3]
Manual: [1/1 → 1/2 → 1/4 → 1/8 → 1/16 → 1/32]
control-sync, High-speed-sync, modeling flash
[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 (According to Pentax testing conditions.)
0°, 45°, 60°, 75°, 90°)
6 minutes in Auto, After 1 hour in the wireless mode.
Power quick-on: By pressing the camera's shutter button halfway
button again to turn it off.
270 g (9.6 oz) without batteries
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