Metz SCA 3202-M manual Synchronisation Normal synchronisation, Second-curtain synchronisation

tion only in the camera mode „P“ and in the flash mode „TTL“.

4.9 Synchronisation	￿
Normal synchronisation

In normal synchronisation, the flash unit is trig- gered at the beginning of the exposure time

(1st curtain synchronisation). Normal synchronisa- tion is the standard mode on all cameras and is suitable for most flash shots. No settings have to be made on the flash unit nor is there any display for this mode.

Second-curtain synchronisation

Synchronisation with the shutter’s second curtain (SLOW 2 or REAR) is particularly advantageous when shooting moving objects that have their own source of light with a slow shutter speed (slower than 1/30 sec). 2nd curtain synchronisation gives a more realistic impression of movement because the light streaks behind the light source instead of building up in front of it – as is the case with

1st curtain synchronisation.

If 2nd curtain synchronisation is selected the flash is not triggered at the moment the first shutter curtain opens, but a fraction of a second before the second shutter curtain is starting. If a slow shutter speed has been chosen, or in the „bulb“ mode with the corresponding aperture, the exist- ing ambient light level permits traces of moving lights to be seen (e.g. light trails left by the lights of a car). As the flash is fired right before the end of the exposure time, the moving subject is frozen at the end of the light trail. The effect thus achie- ved seems more natural to the perception of the

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