Kodak DCS500 - Manual (Page 168)

8-49
8
Expos
ure
If you wish to link FE Lock to any focusing point other than the central one, you must
select the focusing point manually while Custom Function F-13 is set to 1.
If Custom Function No. F-4 (AF activation method and AE lock button operation) is
set to 1 or 2, FE Lock cannot be used.
6 Recompose if necessary and press the Shutter button completely within 8 seconds to
capture the image. Correct flash exposure of the subject measured by the FE Lock is
assured when the flash exposure confirmation signal lights up on the EX-series
Speedlite. (Refer to the Speedlite instruction book for details.)
The proper exposure value is retained in memory—even if you release the FE Lock
button—for 8 seconds or until the image is captured, or one of the camera's mode
buttons is pressed, or the Speedlite or camera is turned Off, whichever comes first.
Adjusting the Background Exposure in FE Lock
After preflashing the subject with the FE Lock button, adjust the background exposure by
turning the Quick Control Dial. The background exposure level is displayed on the
exposure level scale in the viewfinder and on the Top LCD panel. Correct ambient
exposure according to the camera's meter is indicated by the triangle index at the center of
the scale.
The Quick Control dial does not adjust background exposure when the camera is set to
Bulb mode, or in low light situations when the camera is set to Program or DEP.
For information on Flash Exposure Compensation (which is not the same as ambient or
background exposure compensation), refer to the section on Flash Exposure
Compensation later in this chapter.
What is FP Flash Mode?
FP (focal-plane) flash, or high-speed sync, enables an EX-series Speedlite to synchronize
with a shutter speed faster than the camera's maximum sync speed, when used with a
compatible camera like the DCS 500 Series camera. Therefore, even in bright daylight
conditions, a fast lens can be used at a wide aperture to blur the background and
emphasize the subject in portraiture, for example. FP flash is automatic and simple to use.
It is available in Program, Shutter-priority AE, Aperture-priority AE and Manual modes
(P, Tv, Av, & M). FP flash can be combined with E-TTL or FE Lock.
FP flash differs from conventional electronic flash in that its effective output (guide
number) varies according to shutter speed. (In other words, the Speedlite's usable flash-to-
subject distance range decreases according to shutter speed with FP flash.) Please refer to
the EX-series Speedlite instruction book for details.