Nikon D200BODY Flash Photography, Built-in flash supports the following types of flash control

Reference—Flash Photography

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Flash Photography

Using the Built-in Flash

The D200 is equipped with a Guide Number 12/39 flash (ISO 100, m/ft) that can be used not only when natural lighting is inadequate, but also to fill in shadows and backlit subjects or to add a catch light to the subject’s eyes.

The built-in flash supports the following types of flash control:

i-TTL Balanced Fill-Flash for Digital SLR: Speedlight emits series of nearly invisible preflashes (monitor preflashes) immediately before main flash. Preflashes reflected 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 flash 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 flash 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 flash for digital SLR is activated automatically when spot metering is selected.

ISO Sensitivity

i-TTL flash control can adjust for ISO sensitivities between 100 and 1600. It may not be able to adjust flash 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 flash output. This may result in foreground subjects being underex- posed in flash photographs taken at slow shutter speeds, in daylight, or against a bright background. In these cases, choose a flash 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 flash 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 effect if the shutter-release but- ton is pressed halfway while the built-in flash is recharging.

After the built-in flash has been used for several consecutive shots, it may turn off briefly to protect the flash. The built-in flash can be used again after a short pause.

Flash Angle

The flash angle of the built-in flash can cover the field of view of an 18 mm lens. It may not be able to light the entire subject with some lenses or apertures ( 201).