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8
Expos
ure
What is TTL?
TTL (Through-The-Lens) is the standard flash exposure control mode for Speedlites
480EG, 200E, 160E and Macro Ring Lite ML-3 when used with the DCS 500 Series
camera. Additionally, TTL is available with Speedlite 540EZ in all camera exposure
modes except for direct flash in Program mode, as shown in the following table. TTL is
identical to A-TTL in almost every way, except there is no preflash. When the camera is
set to Program mode, TTL flash sets an aperture based on a program line that responds to
the ambient light level.
The availability of A-TTL or TTL depends on the user’s choice of Speedlite, camera
exposure mode, and whether or not the Speedlite is set for direct flash as follows:
Availability of A-TTL and TTL according to Speedlite with DCS 500 Series camera
*Indicates discontinued product as of 1/98.
**When using Speedlite 300TL, set the Flash Mode button to a position other than MHi or
MLo for TTL automatic flash exposure.
Camera Exposure Mode -->
Speedlite Flash Mode
Program
Shutter-
priority
Aperture-
priority
Manual
540EZ
Direct Flash
A-TTL
TTL
TTL
TTL
Bounce Flash
TTL
TTL
TTL
TTL
430EZ*
Direct Flash
A-TTL
A-TTL
A-TTL
TTL
Bounce Flash
A-TTL
A-TTL
A-TTL
TTL
420EZ*
Direct Flash
A-TTL
A-TTL
A-TTL
TTL
Bounce Flash
A-TTL
A-TTL
A-TTL
TTL
300EZ*
Direct Flash
A-TTL
A-TTL
A-TTL
TTL
480EG
Direct Flash
TTL
TTL
TTL
TTL
Bounce Flash
TTL
TTL
TTL
TTL
200E
Direct Flash
TTL
TTL
TTL
TTL
160E*
Direct Flash
TTL
TTL
TTL
TTL
ML-3
Direct Flash
TTL
TTL
TTL
TTL
300TL**
Direct Flash
TTL
TTL
TTL
TTL
Bounce Flash
TTL
TTL
TTL
TTL
Содержание DCS 500 Series
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Страница 200: ...10 11 10 Capturing 4 Press the Vertical Shutter button to capture an image ...
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