Slow Synchronization

Since the flash light is usually stronger than the surrounding ambient light, when you shoot with flash light it is likely that only your main subjects are illuminated properly. The following is an example. The left photograph was taken around midnight with flash on. The distance between the camera and the subject is about six yards, and, as a result, only the sign and the pole are visible.

Without Slow Synchronization	With Slow Synchronization
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This problem can be overcome with the flash setting button. Pressing this button until SLOW appears on the top LCD panel and the LCD monitor. This means slow synchronization is enabled.

Slow synchronization means after sending out flash light, the shutter will stay open for a little longer. In this way, the flash light illuminates main subjects and the slow shutter speed helps capture the background. The above right photograph shows the effect of slow synchronization. As you can see, the background pops up and the snow in the foreground looks more natural.

Slow synchronization can also be used to make a photograph more natural. The left photograph below uses flash without slow synchronization. It does not look like the actual scene which should be warmer. With slow synchronization on, we have the right photograph. Now, the background is more realistic and the foreground is illuminated by the flash.

Without Slow Synchronization	With Slow Synchronization
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