E-Ttl Flash Control - Metz Canon SCA 3102 M3 Manual Del Usuario

over to the flash synch speed. Depending on the
camera model, this synch speed can be varied
within a specific range (e.g. 1/60th sec. to 1/200th
sec.). An aperture must be additionally preselected
on the camera.
When selecting the aperture ensure that the
subject is within the maximum flash range (see
aperture calculator or LC-display of the mecablitz)!

3.2 E-TTL flash control

Various Canon cameras support E-TTL flash control
(see Table 2). With E-TTL flash control the reflective
properties of the subject are determined by firing a
measuring preflash right before the instant of
exposure. On the basis of this preflash
measurement a partial light output level is set on
the flash unit. The subject is then exposed by the
main flash at the selected partial light output level.
The measuring preflash does not contribute to the
exposure of the subject.
E-TTL flash control is suppprted by the following
mecablitz units: 40 MZ-1i, 40 MZ-3i (only in
combination with analog cameras except EOS 30V,
33V, 300V, 300X and 3000V) and 54 MZ-..
For system-induced reasons, the use of the Metz
TTL Remote Mode and the secondary reflector (40
MZ-3i, 54 MZ-...) is not possible for E-TTL flash
control.
To enable activation of the E-TTL flash mode
on the mecablitz, a complete exchange of data
must have taken place between the mecablitz
and the camera. For this purpose, the
camera's shutter release must be lightly
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