Nikon SB-50DX Instruction Manual Download 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