Nikon SB-50DX - Manual (Page 36)

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Recycling time and Minimum recycling type: approx. 3.5 sec. with fresh batteries.
number of flashes Number of flashes and recycling time: 260 times or more
(Manual flash mode) with 3.5 to 30 sec. recycling time.
(With AF-Assist Illuminator, Power Zoom function and LCD
panel illuminator not activated.)
AF-Assist Automatically fires LED beam toward subject when performing
Illuminator autofocus in dim light or in the dark with Nikon AF cameras.
Ready-light 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).
FLASH button 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.
Wide-flash adapter Allows the SB-50DX to be used with 14mm lenses.
Diffuser Attach diffuser to the camera’s built-in Speedlight for
double-flash (bounce) operation.
Sound monitor 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.
Light sensor Senses light received from the master flash unit in wireless
multiple flash operation.
Infrared Filter SW-9IR Enables you to use the SB-50DX as an infrared remote commander.
Lock lever Prevents the SB-50DX from accidentally slipping off the camera.
LCD panel Turned on and off every time the SLAVE button is pressed;
illuminator automatically turns off after approx. 16 sec. when the
SB-50DX is not in use.
Backside indications Light-condensing paint is applied to the characters and
symbols.
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 Miscellaneous
Wireless Flash mode Effective range
Auto Slave Flash Approx. 7m (23 ft.)
Manual Slave Flash Approx. 40m (131 ft.)
Electronic Automatic Insulated Gate Bipolar Transistor (IGBT) and
construction series circuitry.
Guide number
(ISO 100, m/ft.)
• 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.
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
flash
Power source Two CR123A or DL123A type 3V lithium batteries.
Specifications
Zoom-head position 14mm 24mm 28mm 35mm 50mm
Guide number 12/39 18/59 20/66 22/72 26/85
Zoom-head Angle of coverage
position Vertical Horizontal
14mm (with wide- 14mm 87° 106°
flash adapter)
24mm 24mm 60° 78°
28mm 28mm 53° 70°
35mm 35mm 45° 60°
50mm 50mm 34° 46°
HK TTL auto flash Automatic Balanced Fill-Flash
with TTL Multi-Sensor
H J Matrix Balanced/Center-Weighted/
Spot Fill-Flash
H Standard TTL Flash
D HK D-TTL Automatic Balanced Fill-Flash with
auto flash TTL Multi-Sensor for Digital SLR
D H J Center-Weighted Fill-Flash for
Digital SLR
D H Standard TTL Flash for Digital SLR
D Manual flash
SB-50DX (E) 02.12.9 2:33 PM Page 70