94
k
Setting procedure
• Switch on the flash unit with the
Ǽ
button.
• Press the “TTL” button
on the flash unit to set the
TTL mode of operation
.
• Set a suitable mode of operation on the camera,
e.g. P, S, A .
• Tap the shutter release to transfer data between the
flash unit and the camera.
5.1.1 E TTL- and E TTL II - flash mode (Canon)
E-TTL and E-TTL-II flash modes are digital flash modes.
5.1.2 i-TTL / i-TTL-BL flash mode (Nikon)
The i-TTL flash mode is supported by CLS-compatible
Nikon cameras.
The i-TTL-BL flash mode are only supported by
CLS-compatible cameras if lenses are used that
transmit distance data to the camera
(for example, "D-AF Nikkor lens").
When shooting this data is taken into consideration in
addition in adjusting the flash exposure.
Some cameras do not support the BL function in
combination with SPOT exposure metering! In these
cases, the normal i-TTL flash mode is set.
5.1.3 TTL flash mode with measurement pre-flash
(Olympus)
The TTL flash mode with measuring preflash is a further
development of the standard TTL flash mode of analo-
gue cameras.
Depending on the camera model, the preflashes precede
the main flash by such a short interval that they
practically cannot be distinguished from the main flash!
The preflashes do not contribute to the lighting of the
shot.
5.1.4 P-TTL flash mode (Pentax)
The P-TTL flash mode is a digital TTL flash mode that is a
further development of the TTL flash mode of analogue
cameras.
5.1.5 A-TTL flash mode (Samsung)
The A-TTL flash mode is a digital TTL flash mode that is
supported by compatible Samsung cameras.
5.1.6 Preflash TTL and ADI metering (Sony)
Preflash TTL and ADI metering are digital TTL flash
operating modes and refined versions of the TTL flash
operation found in analogue cameras.
In the case of ADI metering, additional distance data
from the lens is incorporated into the flash exposure
process. The selection and/or setting of the preflash
