faster than the camera’s flash synch speed. This is
useful for portraiture in very bright ambient light and a
wide aperture to limit the depth-of-field.
• ETTL flash mode (only with Canon SCA 3102)
In this mode the reflecting properties of the subject are
established by a preflash before shooting.
• ETTL-HSS mode (only with Canon SCA 3102)
This mode permits the use of flash at shutter speeds
faster than the camera’s flash synch speed.
• 3D-TTL flash control (only possible with Nikon SCA 3402)
In this mode hardly visible measuring beams are emit-
ted as the shutter release is depressed, before the
shutter curtain opens. They supply the camera with the
necessary information regarding brightness and con-
trast.
Glossary
Terminologia
Terminología
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