Nikon D100 - Manual (Page 115)

Taking Photographs—Flash Photography
Using Built-in and Optional Speedlights
103
Using an Optional Speedlight
Optional Speedlights with D-TTL Flash Control
SB-series 80DX, 50DX, and 28DX Speedlights support D-TTL flash control when
mounted on the camera accessory shoe (
104). D-TTL flash control is not
available with other optional Speedlights ( 106).
The type of flash control available with SB-series 80DX, 50DX, and 28DX
Speedlights depends on the type of lens attached:
Type G or D CPU lens 3D Multi-Sensor Balanced Fill-Flash for Digital SLR
Other CPU lens Multi-Sensor Balanced Fill-Flash for Digital SLR
All types Standard TTL Flash for Digital SLR
Lens Flash control
The SB-80DX and SB-50DX Speedlights
The SB-80DX and SB-50DX support D-TTL flash control ( 95). When used
in combination with a type G or D lens, they support 3D multi sensor bal-
anced fill flash for digital SLR for natural, balanced light, even when the scene
contains highly reflective objects or the background is very far from the cam-
era. Both models offer AF-assist illumination, and are equipped with auto
power zoom that adjusts the flash angle according to the focal length of the
lens.
Nikon SB-80DX Speedlight
The SB-80DX is a high-performance Speedlight with a guide number of 53/
174 (m/ft, manual mode, 35-mm zoom-head position, ISO 200, 20
°
C/68
°
F;
GN at ISO 100 is 38/125). It can be powered by four LR6 (AA) alkaline batte-
ries or by SD-7, SD-8A, and SK-6 power sources (all available separately). For
bounce-flash or close-up photography, the flash head can be rotated through
90
°
up, 7
°
down, 180
°
left, and 90
°
right. Light from the flash can be
diffused for wide-angle photography by using the SB-80DX in combination
with a wide panel or bounce adapter, producing soft lighting that balances
the foreground subject with the background in close-ups and bounce-flash
photography. The SB-80DX is equipped with an illuminator to assist in adjust-
ing settings in the dark. Custom settings allow you to fine-tune all aspects of
flash operation.