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Fill flash was used in this shot of a Hosta plant.
A basic photographic technique, known as "fill flash", uses your camera's flash to fill-in dark shadows when you're shooting in harsh lighting conditions (i.e. midday Sun), especially with a backlit subject. Its very easy to apply, and very effective, but it often seems that the average snapshooter doesn't know how to use it.
Without going into too much detail, I'll explain how to enable the fill flash setting on your camera. All you have to do is find the button that looks like a lightning bolt, and press it until the camera's display shows only the lightning bolt (this option may be in a menu, check your camera manual). Sometimes it'll display "auto", "slow", or "rear" next to the lightning bolt instead, but you don't want those. Once you've done that, the camera will handle the rest automatically, and you can enjoy better pictures when you're outside.
For the longer explanation of fill flash, I'm still going to keep it fairly simple, but I'll provide some sample shots to show it in action.
For example, let's say you're at the beach on a bright, sunny day, and you want to take a picture of your friends with the sand, sky, and Sun in the background. Now, I know most people wouldn't shoot into the Sun, but I want to emphasize the fact that the background is brighter than the subject. Still, even without the Sun, the sky and sand would be much brighter than your friends. So, you snap a picture, but your friends are all too dark to see! You can barely make out their expressions, while the sky and sand look great... ain't that a B?
Well, the reason this happens is because your camera is trying to make everything appear natural (blue skies look blue, tan sand looks tan), and it gives priority to bright areas of the scene. Subsequently, your friends fall into shadow, because they aren't nearly as bright as the sky and sand. If you wanted to account for this by changing the settings in your camera to brighten everything up (called exposure compensation), your friends would look normal, but you'd lose the colors of the sand and sky as they washed out and faded to bright white.
Here's a shot to show what happened in the above scenario.
Everything in the foreground is dark, but the solution is simple here. Press that little lightning bolt button on your camera, and give the shot a dose of fill flash.
Notice that the sky looks exactly the same, but my hand and the camera (Canon SD600) are now lit up. Boom. That's fill flash.
To leave off on something with a little more impact, and going along with the beach theme, here's a shot of Ryan.
This shot, and the one of the Hosta at the top of the post, were both taken with that little Canon SD600 camera and it's built-in flash!
Please leave a comment if you find this post useful, or at least entertaining... I'd love to get some feedback here!