![background image](/i/pentax/164612/pentax-af-540-fgz/h/pentax-af-540-fgz-091.png)
89
(ISO 400)
Flash duration (1/2 peak each)
(M1/1) flash: Approx. 1/1200 sec. (TTL) Fastest duration time: Approx. 1/20000 sec.
Recycling time/Total number
of flashes
Consecutive Discharge
Approx. 2 frames/sec. for 50 times, at M 1/16 output (with using AA alkaline LR-6 batteries)
Flash Coverage Angle
Auto zoom enabled with autofocus compatible camera and lens combination.
*Wide-angle panel used.
Color temperature
Daylight (Suited for daylight color film)
Effective flash range
Approx. 0.8 m - 8.0 m (Guide No. 45, ISO 100, F/5.6)
AF spotbeam
Red beam emitted under low light or low-contrast conditions.
Effective range: Approx. 1 m - 7 m (According to our testing conditions.)
Film speed setting
ISO 25 - 1600
Focal Length (Zoom position)
85mm 70mm 50mm 35mm 28mm 24mm 20mm*
(M1/1) (=FULL)
108
100
90
78
70
64
42
(M1/2)
76
71
64
55
49
45
30
(M1/4)
54
50
45
39
35
32
21
(M1/8)
38
35
32
27.5
24.5
22.5
14.5
(M1/16)
27
24.5
22.5
19.5
17
16
10
(M1/32)
19
17
16
13.5
12
11
7
(M1/64)
13.5
12
11
9.5
8.5
7.5
5
Battery type
Recycling time Total number of flashes
AA Alkaline (LR6)
Approx. 6 sec.
Approx. 200
AA Nickel-Metal Hydride (Ni-MH) (2500mAH) Approx. 6 sec.
Approx. 250
AA Lithium (FR6)
Approx. 6 sec.
Approx. 350
TR Power Pack-3 (C-size alkaline LR14 batteries) Approx. 4.5 sec.
Approx. 700
(7 step zoom)
Zoom position
85mm
70mm
50mm
35mm
28mm
24mm
20mm*
Vertical Coverage
23°
26°
34°
45°
53°
60°
85°
Horizontal Coverage
31°
36°
46°
60°
70°
78°
98°
AF540FGZ_OPM_ENG.book Page 89 Friday, January 14, 2011 12:44 PM