How to use Rear Sync mode for more natural background

There's a setting on your camera that will help you get better-quality photos using flash. Your flash shots will get so much better. However this feature is not turned on by default. The feature is called Rear Sync.

How rear sync mode does is change when the flash actually fires. Usually, your flash fires the moment you press the shutter button. So it does freeze any action in the scene, but it also generally makes everything solid black behind the subject, like you see in most snapshots.

Enabling the Rear Sync makes the flash fire at the end of the exposure, rather than the beginning. This allows the camera expose for the natural background light in the room first, and then at the very last second, it fires the flash to freeze your subject. As a result, the background is not dark. It has color, depth, and detail which gives you a much more professional look all the way around.

How to enable the rear sync mode then? You just need to switch the flash to Rear Sync. One thing to bare in mind is to keep the camera still when shooting in Rear Sync mode, because the shutter stays open longer, enough to expose for the background. 

Techniques of using cameras flashes