How to use the long-time synchronization?

The term describes a slow-sync flash photography of the recording technique in which the set shutter speed is slower than the flash sync speed.

In comparison, in conventional photography, the flash is always synchronized with the fastest shutter speed of the camera where the shutter is still completely open. By default, the automatic camera selects a rule, a fast shutter speed. Especially at night or indoors, this has the consequence that only the front portion of the scene is illuminated by the flash. As the camera by the fast shutter speed very quickly triggers the lighting effect of the flash almost no time for the propagation in the background.

Here comes the slow sync into play: The flash can provide a good and complete illumination, so that the main subject in the foreground, but also the details seen in the background. Experienced photographers use the slow sync continues as a stylistic device to just keep shooting of moving objects in a certain dynamic. By combining the flash with a long exposure that is creating a "ghosting" which causes the recording scene has literally been frozen. This effect is among others in the sports photography to monitor more frequently.

For the implementation of long-term synchronization, you need a suitably equipped digital camera with a built-in or plugged-flash. The required settings (shutter speed, flash intensity) can make at any SLR camera. Some compact cameras in the upper price segment enable the exploitation of long-term synchronization.

Place the unit on a manual focus and select a time value (AV) with a 1:13-aperture. The exposure time should be about 1 / 3 seconds, the focal length of about 50 mm. Customize, finally, the light sensitivity to ISO 400.

Title Post: How to use the long-time synchronization?
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