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this case no switching to sync speed occurs.
• The camera operates with shutter speeds that are slower than the flash sync
speed. Depending on the camera mode, there is no switch to flash sync speed
(see the camera’s operating instructions).
The shots have shadows in the bottom of the image.
• Because of parallax error between lens and flash unit, close-up shots may not,
depending on the focal length at the bottom of the image, be fully illuminated.
Tilt the main reflector downwards or turn the wide-angle diffuser in front of
the reflector.
The shots are too dark.
• The subject is beyond the range of the flash unit. Note: Using bounce flash
reduces the range of the flash unit.
• The subject contains very bright or highly reflective areas. The metering
system of the camera or flash unit is deceived as a result. Set a positive manu-
al flash exposure correction, e.g., +1 EV.
The shots are too bright.
• In close-up shots, overexposure (shots that are too bright) may result if the
shutter speed is faster than the flash sync speed. The minimum distance from
the subject should be at least 10% of the maximum flash range indicated on
the display.
The aperture (f-stop) cannot be adjusted on the flash unit.
• There is an exchange of digital data between the flash unit and camera.
Adjustment of the aperture is not possible!
16 Technical data
Max. guide numbers at ISO 100/21°, zoom 105 mm:
In the metric system: 48 In the imperial system: 157
Flash modes:
Standard TTL with measuring preflash, Matrix-controlled TTL fill-in flash mode,
3D multi-sensor fill-in flash mode, Automatic FP short sync., D-TTL, D-TTL-3D,
i-TTL, i-TTL-BL, Manuel M
Manual partial light output levels:
1/1 ... P1/128 light output, in one-third increments.
Flash durations see table 3, page 132:
Sensor measuring angle:
approx. 25°
Colour temperature:
approx. 5600 K
Film speed:
ISO 6 to ISO 6400
Synchronisation:
low-voltage ignition
Number of flashes:
• approx. 90 with NiCad batteries (600 mAh)
• approx. 210 with high-capacity alkaline manganese batteries
• approx. 250 with NiMH batteries (1600 mAh)
• approx. 460 with lithium batteries
(at full light output)
Recycling time (at full light output): Approx. 3,5 sec
Light coverage:
Main reflector from 24 mm (35 mm format)
Main reflector with wide-angle diffuser from 18 mm (35 mm format)
707 47 0081.A2 48AF-1Nikon/Inh. 19.09.2007 12:42 Uhr Seite 86
