Using a Wide-Angle Lens on Your Digital Camera
At any given aperture, wide-angle lenses provide a lot of depth-of-field, allowing you to picture a larger range of subject matter without the distracting blurriness of objects (see this figure).
Emphasize the foreground, as shown in this figure.
If you want to put extra emphasis on subjects in the foreground, such as a lake or meadow, while de-emphasizing the mountains in the background, use a wide-angle lens.
Distort the foreground.
Wide-angle lenses tend to exaggerate the size of objects closest to the lens (as you can see in this figure) — use this perspective distortion to create an interesting viewpoint.
Add a unique angle, like in this figure.
Wide-angle lenses allow you to think creatively and look at objects with a unique perspective.
Use slower shutter speeds.
Wide-angle lenses tend to minimize camera shake, so you can use slower shutter speeds to create photos like the one in this figure.
Show more stuff.
You can show more of your scene with a wide-angle lens, as shown in this figure.