Nikon 50DX Instruction Manual - Page 36

Specifications Electronic construction Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry. Guide number (ISO 100, m/ft.) Zoom-head position 14mm 24mm 28mm 35mm 50mm Guide number 12/39 18/59 20/66 22/72 26/85 • 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 wideflash adapter) 24mm 28mm 35mm 50mm Angle of coverage 14mm 24mm 28mm 35mm 50mm Vertical 87° 60° 53° 45° 34° Horizontal 106° 78° 70° 60° 46° Flash duration Bounce capacity Power switch Flash exposure control/type of TTL/D-TTL auto flash Approximately 1/1800 sec. at manual full output. Flash head tilts up to 90° or down to -18° with click stops at 90°, 75°, 50°, 0° and -18°. 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. Pressing the MODE button changes flash mode/type of TTL/ D-TTL auto flash. HK HJ H D HK DH J DH D TTL auto flash D-TTL auto flash Automatic Balanced Fill-Flash with TTL Multi-Sensor Matrix Balanced/Center-Weighted/ Spot Fill-Flash Standard TTL Flash Automatic Balanced Fill-Flash with TTL Multi-Sensor for Digital SLR Center-Weighted Fill-Flash for Digital SLR Standard TTL Flash for Digital SLR Manual flash Power source Two CR123A or DL123A type 3V lithium batteries. 70 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 Illuminator Automatically fires LED beam toward subject when performing 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. Wireless Flash mode Auto Slave Flash Manual Slave Flash Effective range Approx. 7m (23 ft.) Approx. 40m (131 ft.) 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 illuminator 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. 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 71 Miscellaneous