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Reference—Flash Photography
The D200 is equipped with a Guide Number 12/39 fl ash (ISO 100, m/ft) that can
be used not only when natural lighting is inadequate, but also to fi ll in shadows
and backlit subjects or to add a catch light to the subject’s eyes.
The built-in fl ash supports the following types of fl ash control:
i-TTL Balanced Fill-Flash for Digital SLR: Speedlight emits series of nearly invisible prefl ashes
(monitor prefl ashes) immediately before main fl ash. Prefl ashes refl ected from objects in
all areas of frame are picked up by 1,005-pixel RGB sensor and are analyzed in combina-
tion with information from matrix metering system to adjust fl ash output for natural bal-
ance between main subject and ambient background lighting. If type G or D lens is used,
distance information is included when calculating fl ash output. Precision of calculation
can be increased for non-CPU lenses by providing lens data (focal length and maximum
aperture; 93 – 95). Not available when spot metering is used.
Standard i-TTL Flash for Digital SLR: Flash output adjusted to bring lighting in frame to stan-
dard level; brightness of background is not taken into account. Recommended for shots
in which main subject is emphasized at expense of background details, or when exposure
compensation is used. Standard i-TTL fl ash for digital SLR is activated automatically when
spot metering is selected.
Flash Photography
Using the Built-in Flash
ISO Sensitivity
i-TTL fl ash control can adjust for ISO sensitivities between 100 and 1600. It may not be
able to adjust fl ash level appropriately for ISO sensitivities over 1600. When On is selected
for Custom Setting b1 (ISO Auto; 152), ISO sensitivity will automatically be adjusted as
required for optimal fl ash output. This may result in foreground subjects being underex-
posed in fl ash photographs taken at slow shutter speeds, in daylight, or against a bright
background. In these cases, choose a fl ash mode other than slow sync or select mode A or
M and choose a larger aperture.
Using the Built-in Flash
If the built-in fl ash is used in continuous shooting mode, only one photograph will be taken
each time the shutter-release button is pressed.
Vibration reduction (available with VR lenses) does not take eff ect if the shutter-release but-
ton is pressed halfway while the built-in fl ash is recharging.
After the built-in fl ash has been used for several consecutive shots, it may turn off briefl y to
protect the fl ash. The built-in fl ash can be used again after a short pause.
Flash Angle
The fl ash angle of the built-in fl ash can cover the fi eld of view of an 18 mm lens. It may not
be able to light the entire subject with some lenses or apertures ( 201).