Flash Modes; Ttl Flash Modes; E-Ttl- And E-Ttl-Ii - Flash Mode (Canon); I-Ttl / I-Ttl-Bl Flash Mode (Nikon) - Metz mecablitz 44AF-2 digital Bedienungsanleitung

5 Flash modes

Depending on camera type different TTL
flash modes, manual mode and remote
slave mode are available.
Flash mode can be configured via the
appropriate TTL, M or SL button.

5.1 TTL flash modes

In TTL modes, excellent flash exposure
is straight-forward. In TTL mode, flash
metering is taken care of by a sensor in
the camera. It measures reflected light
through the lens (TTL).
This enables the camera to automati-
cally determine the flash output requi-
red for correct exposure of the shot.
The benefit of TTL flash modes is that
k
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all factors which could influence the
exposure (filters, changes to aperture
and focal length for zoom objectives,
extensions for close-ups etc.) are auto-
matically taken into account through
flash light adjustment.
If the shot is correctly lit, the button
will light up red for 3 seconds (see
4.2).
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5.1.1 E-TTL- and E-TTL-II - flash mode
(Canon)
E-TTL and E-TTL-II flash modes are digi-
tal flash modes based on the further
development of the TTL flash mode for
SL
M
analogue cameras.
5.1.2 i-TTL / i-TTL-BL flash mode
TTL LED
(Nikon)
The i-TTL flash mode is supported by
CLS-compatible Nikon cameras.
The i-TTL-BL flash mode are only sup-
ported by
CLS-compatible cameras if lenses are
used that transmit distance data to the
camera
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(for example, "D-AF Nikkor lens").
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The i-TTL-BL flash is only possible in a
0° reflector position.
When shooting this data is taken into
consideration in addition in adjusting
the flash exposure.
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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.