Pug-OT, a yahoo group I’m a member of have started a very useful thread TOTW (Technique Of The Week). As you could have guessed now, Slow Sync was the first topic of TOTW. As a beginner with photography, it was a nice learning experience for me.
Slow Sync – A technique in which we fire the flash along with slow shutter speed. One use of it, as shown in the above image, is to increase the illumination of background.
Following are some of the links I read to learn about this technique
Flash Photography Made Simple
In the above image, the top picture is clicked in Full Auto Mode and the bottom picture is clicked in Manual mode. Following are the details.
Top Pic: Auto(1/60sec, f/3.5, 18mm, ISO400, Pattern Metering).
Bottom Pic: M(6sec, f/3.5, 18mm, ISO400, Partial Metering).
Camera: Canon 400D