When the camera shakes an exposure and you are not using a fast enough shutter speed, your pictures may turn out blurry. In order to get sharp images when shooting hand-held, you must identify all the different factors that have the potential to cause camera shake, and take precautions to minimize their impact on your pictures.
Stabilize your body
Stand with your feet shoulder-width apart, firmly planted on the ground. Hold your camera firmly with both hands, and keep your elbows tucked in close to your sides. If your camera does not have an optical viewfinder, try not to hold the camera out very far from your body while composing your shot on the LCD.
Look for natural braces
You can lean a nearby pole, tree, gate, fence, or any other structure in order to keep your body extra still.
Time to expose — keep it steady
Breathe out right before you press the shutter button. And speaking of pressing the shutter button, do not tap it. Tapping the shutter button can make the camera jump — instead, gently squeeze it.
Take multiple exposures
Unlike film, we can take multiple digital exposures without our wallets taking a hit. Given a scene that changes very little such as a landscape, we can take multiple exposures in order to increase the probability that at least one turns out sharp.
Use image stabilization/vibration reduction
Lenses and cameras with IS or VR have built-in mechanisms that can sense the movements of your camera and compensate for them in order to keep the pictures sharp. Some of the latest image stabilization technology lets you shoot up to 3 stops past the point where camera shake would normally introduce blur.