Types Of Ttl Auto Flash - Nikon F100 Instruction Manual

Types of TTL Auto Flash

• When an optional Nikon Speedlight is attached and set to TTL mode,
the following TTL Auto Flash modes are available depending on the
type of lens used.
Multi-Sensor Balanced Fill-Flash/3D Multi-Sensor Balanced Fill-Flash
(Automatic Balanced Fill-Flash with TTL Multi Sensor)
Automatic Balanced Fill-Flash with TTL Multi
Sensor can be performed with a combination of
the F100 camera, a CPU lens and the Nikon TTL
AF Speedlight. In this flash mode, just after you
press the shutter release button and before the
shutter is activated, the Speedlight with Monitor
Pre-Flash function (SB-800, SB-600, SB-80DX,
SB-50DX, SB-28/28DX, SB-27, SB-26 and
SB-25) will fire a series of imperceptible pre-
flashes that are detected by the F100's five-
segment TTL Multi Sensor, then analyzed for brightness and contrast. Furthermore,
when a D- or G-type AF Nikkor lens is attached, it integrates Distance Information
from the lens with other exposure control information, automatically compensating
the flash output level so that flash output and ambient light are balanced.
With a Speedlight with Monitor Pre-Flash function or the SB-24, you can cancel the
Automatic Balanced Fill-Flash with TTL Multi Sensor to perform Standard TTL Flash.
Multi-Sensor Balanced Fill-Flash can also be performed with the SB-24 and other
dedicated Speedlights that do not have the Monitor Pre-Flash feature. Select a
metering system other than Spot Metering with the F100. (The Flash mode
automatically switches to Standard TTL flash with Spot Metering.)
Center-Weighted Fill-Flash
Center-Weighted Fill-Flash is performed with a TTL AF Speedlight and non-CPU
lens. Since Center-Weighted Metering is used instead of Matrix Metering with a non-
CPU lens, flash output and ambient light of the main subject and background are
roughly balanced. If a highly reflective object is located within the frame or the
background is non-reflective, correct exposure may not be obtained. With a
Speedlight with Monitor Pre-Flash function or the SB-24, you can cancel the Center-
Weighted Fill-Flash to perform Standard TTL Flash.
Standard TTL Flash
With a Speedlight with Monitor Pre-Flash function or the SB-24, Standard TTL Flash
can be performed with any type of lens. With other Speedlights, Standard TTL Flash
is automatically set when the camera is set to Manual exposure mode. In Standard
TTL Flash, automatic flash output level compensation is not available. This means
that, even though the main subject is correctly exposed, the background may not
be. (Selecting Spot Metering automatically switches the TTL auto flash mode to
Standard TTL Flash.)
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