Nikon SB-50DX Manuale di istruzioni - Pagina 36
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Specifications
Electronic
Automatic Insulated Gate Bipolar Transistor (IGBT) and
construction
series circuitry.
Guide number
Zoom-head position
(ISO 100, m/ft.)
Guide number
• See p. 33 for guide numbers in 1/300 TTL High-Speed
Sync.
Angle of coverage
Variable in four steps, plus one-step with wide-flash adapter.
Zoom-head
position
14mm (with wide-
flash adapter)
24mm
28mm
35mm
50mm
Flash duration
Approximately 1/1800 sec. at manual full output.
Bounce capacity
Flash head tilts up to 90° or down to –18° with click stops at
90°, 75°, 50°, 0° and –18°.
Power switch
ON/OFF button is provided; pressing the ON/OFF button for
approx. 0.3 sec. turns the SB-50DX on or off.
• When the SB-50DX is not used for approx. 40 sec., the
standby function activates and the SB-50DX automatically
turns off to conserve battery power.
Flash exposure
Pressing the MODE button changes flash mode/type of TTL/
control/type of
D-TTL auto flash.
TTL/D-TTL auto
HK
flash
H
J
H
HK
D
H
J
D
H
D
D
Power source
Two CR123A or DL123A type 3V lithium batteries.
70
14mm
24mm
28mm
35mm
12/39
18/59
20/66
22/72
Angle of coverage
Vertical
Horizontal
14mm
87°
106°
24mm
60°
28mm
53°
35mm
45°
50mm
34°
TTL auto flash Automatic Balanced Fill-Flash
with TTL Multi-Sensor
Matrix Balanced/Center-Weighted/
Spot Fill-Flash
Standard TTL Flash
D-TTL
Automatic Balanced Fill-Flash with
auto flash
TTL Multi-Sensor for Digital SLR
Center-Weighted Fill-Flash for
Digital SLR
Standard TTL Flash for Digital SLR
Manual flash
Recycling time and Minimum recycling type: approx. 3.5 sec. with fresh batteries.
number of flashes
(Manual flash mode) with 3.5 to 30 sec. recycling time.
50mm
26/85
AF-Assist
Illuminator
Ready-light
FLASH button
78°
Wide-flash adapter Allows the SB-50DX to be used with 14mm lenses.
70°
60°
Diffuser
46°
Sound monitor
Light sensor
Infrared Filter SW-9IR Enables you to use the SB-50DX as an infrared remote commander.
Lock lever
LCD panel
illuminator
Backside indications Light-condensing paint is applied to the characters and
Dimensions (W x H x D) Approx. 63 x 107 x 105 mm (2.5 x 4.2 x 4.1 in.)
Weight (without batteries) Approx. 235g (8.3 oz.)
Accessories supplied Soft Case SS-50, Infrared Filter SW-9IR
Number of flashes and recycling time: 260 times or more
(With AF-Assist Illuminator, Power Zoom function and LCD
panel illuminator not activated.)
Automatically fires LED beam toward subject when performing
autofocus in dim light or in the dark with Nikon AF cameras.
Lights up when SB-50DX is charged and ready to fire.
Blinks when flash fires at its maximum output, indicating light
may have been insufficient (in TTL/D-TTL auto flash mode).
Pressing FLASH button performs test firing.
• Pressing the button turns the SB-50DX on again after the unit
has been automatically turned off by the standby function.
Attach diffuser to the camera's built-in Speedlight for
double-flash (bounce) operation.
The SB-50DX emits a single beep when it is charged and
ready-to fire in wireless multiple flash operation.
The SB-50DX emits two beeps when it has fired properly in
wireless multiple flash operation.
The SB-50DX emits beeps for 3 sec. after it has fired at
maximum output or improperly fired in TTL wireless multiple
flash operation in the Auto Slave Flash mode.
Senses light received from the master flash unit in wireless
multiple flash operation.
Wireless Flash mode
Effective range
Auto Slave Flash
Approx. 7m (23 ft.)
Manual Slave Flash
Approx. 40m (131 ft.)
Prevents the SB-50DX from accidentally slipping off the camera.
Turned on and off every time the SLAVE button is pressed;
automatically turns off after approx. 16 sec. when the
SB-50DX is not in use.
symbols.
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