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It is harder to shoot good digital photos of moving objects than of still objects. When objects are still you have all the time that you need to focus on the object and set the other camera parameters like shutter speed and aperture. This time shortens as the objects in the frame move faster and faster.

An example of moving objects that you might be photographing is a runner in a race, a racecar in a racing event or a jet fighter in an air show. The closer you are to those moving objects the faster they appear to be moving relative to your position and the faster they move the less time you have to set the camera and shoot the digital photo. For example if you are really far from a racecar during a race you have more time to take the photo than if you are virtually on the track and the car is heading your way.

There are many aspects to shooting good moving objects photos. In this article we will only look at one: focusing on the object. Other parameters such as shutter speed and aperture are explained in other articles. When objects are in focus digital photos look sharp and crisp when objects are out of focus they look unclear and blurry.

With low-end pocket cameras you do not have much choice when it comes to focusing. The camera will make its best effort to focus on the objects and there is little control for you as the photographer to guarantee the results. Semi-professional photographer are more likely to use SLR digital cameras with zoon lenses when taking photos of moving objects in scenarios like those described above. When using such equipment you can take advantage of a focusing mode known as Continuous Focus.

In Continuous Focus mode the camera continuously focuses on the objects in the photo. Once the shutter button is pressed and as long as it is held half way down the camera continuously focuses on the objects in the photo. The camera continuously corrects the focus as the objects distance from the camera changes.

When using this mode to shoot photos of moving objects you should hold the shutter button half way down and continuously move the camera to follow the objects. The camera will continuously keep the objects in focus. When you are ready to shoot the photo simply press the shutter button all the way down. By continuously correcting the focus the camera guarantees that it is always ready to shoot the photo when you feel the composition is right. For example you can use this mode to track an airplane in an air show and take the photo exactly when the composition is right - maybe when another bigger and slower airplane is visible making the digital photo composition more impressive.

This mode is not free of drawbacks. One drawback is the associated high power consumption as the camera continuously corrects the focus it uses the power hungry motors in the lens in order to move the optical components back and forth. Another drawback is the need to keep the objects in focus in a specific area of the frame that the camera focuses on limiting the composition options - usually this area is in the center of the frame.

Ziv Haparnas is a technology veteran and writes about practical technology and science issues. This article can be reprinted and used as long as the resource box including the backlink is included. You can find more information about photo album printing and photography in general on http://www.printrates.com - a site dedicated to photo printing.

Digital Camera Scene Modes: Getting the Right Exposure With the Push of a Button

When professional photographers take pictures of fireworks, a night sky, or a local football game they have made numerous adjustments to assure a quality image despite the special lighting conditions. A faster shutter speed to capture action, a wider aperture to allow more light in from a darkened scene, and so forth are necessary in many circumstances. Even that photo taken in the living room on Christmas morning has much different lighting than the shot taken of the kids running out through the snow covered landscape later that same day. Clearly, changes in the settings on the digital camera are what can allow such diverse shots to produce acceptable images.

It is few amateurs who wish to take the time to select all of the appropriate settings on a camera for each shot, and few as well who choose to purchase a camera with many manual controls. Luckily however, many digital camera models have scene modes that are readily available at the push of a button. These pre-programmed settings allow beginners to successfully adjust to the variety of conditions in which we wish to shoot. Once a camera is selected with these scene modes, it is merely a matter of determining which of them is appropriate for a given shot.

Like any device, there are unique settings on the various camera models and different names applied by different manufacturers, however, there are some settings that are very common and understanding them will get a novice on the track to better photos in short order.

Portrait Scene Mode

This mode is used, as one would expect, when shooting a "portrait" of a person or pet. With this mode, the camera uses a large aperture, and perhaps a faster shutter speed to compensate for the large aperture. This creates a sharper focus on a nearby subject and makes the background less distinct.

Landscape Scene Mode

In contrast to the portrait setting, the landscape setting on a digital camera makes use of a small aperture and perhaps a slower shutter speed in an effort to bring as much of a scene into sharp focus as possible.

Nighttime Scene Mode

This mode uses flash and a slow shutter speed in an effort bring in as much light as is available in a dark scene. Users still need to focus on maintaining a steady shot to assure good focus and a tripod or other steady surface is generally required for the best image.

Sports or Action Scene Mode

The fast shutter speed and wider aperture used when a digital camera is set on an "action" scene mode allows a user to capture rapid motion and minimizes blurring due to the movement.

Beach and Snow Scene Modes

In this mode, the digital camera will adjust white balance and contrast to keep colors more realistic and the photo from being too washed out or indistinct.

Macro Mode

This setting allows users to photograph items at close range using a smaller aperture. This setting is appropriate when shooting a subject, often a flower, an insect, or a small object such as a coin that is within 3 feet or less of the lens; too close for the typical point and shoot digital camera to focus without special adjustments. The subject of the photo should be clear and all of the background surrounding it blurred. A tripod is recommended in these situations to help eliminate problems with camera shake and the resulting blurriness.

Using the appropriate scene mode when shooting pictures merely provides a digital camera the instructions it needs to adjust settings for the specific situation, allowing beginners to create better quality images with the push of a button.

About the Author

Selecting and using a digital camera or camcorder should be easy. Find the information you need to help you at homemedias.info, the author's online home electronics store.

Canon 50D shutter button speed question?

How do I change the shutter speed for the new Canon 50D? On automatic it is at 1/60 right now. But when I go to TV mode, it can go much higher than that. How do I change the shutter speed on my automatic shooting? It seems as though all my pictures are a little blurry, and not up to great picture quality. How can I make it better?
Thanks!

In Auto mode, you have no control of the camera/ lens at all. Everything choose itself. You have no say. If you want to get a good enough shutter speed, go to the TV mode, and choose a Focal length reciprocal to the focal length of the lens. For example, if you have a 200mm lens, you'll need at least a 1/200 Speed. If you're in Dim light, this could easily be impossible. I suggest, you use the M mode, and get complete control of the camera/lens. Auto mode doesn't make the right choices, and the Av and Tv modes aren't Good enough for me.

Try using the flash, but you can't change the Shutter speed in the Automatic mode, in TV if you choose a higher shutter speed that what it appropriate, you'll get a dark image ( over exposed ) Just because the number can go up and up, doesn't mean it'll work. You have a lot to learn aaboutthe Canon 50d.

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