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Posts Tagged ‘Focus’

Digital Photography - How To Get Going

July 1st, 2009
Are you planning to shift to a digital camera from your old film operated camera but are too afraid to make such a complicated transition? There is no requirement to worry or be afraid of a memory card operated digital camera. Although digital camera sound complicated, they are actually extremely user friendly. Here are a few tips that will make it easier to get accustomed to your digital camera.

Enhance color tones of the picture

Have you ever felt that your photos look cold or have a clammy aura. This is due to the fact that digital cameras have a default white balance setting at auto. This will work for most of your shots but in case you want more yellows or reds in your shot, you can adjust the setting to cloudy mode. This will make the picture look richer and warmer.

Macro Mode

If you wish to sharpen the details in your shots, you can adjust the close up option, usually referred to as the macro mode. Unlike in the traditional camera, doing this is very easy while using a digital camera. In order to use the macro mode, select the macro mode icon or close up icon. Normally, a flower represents this. Keep the camera as close to the object as possible. Remember that as your field depth is rather shallow, you will need to focus on that region of the object that you consider most important.

File storage

It is necessary to get a memory card that can store a large number of picture files. This lets you shoot more pictures. The size of your memory card should be proportional to the resolution of the camera, that is, the higher the resolution, the larger the memory should be. With a large enough memory you have the option of taking more photos. So you will not have the problem of passing off the opportunity of taking a good shot because of a memory card that is full.

Use high resolution

There will be a lot of resolution settings in your camera. Try your best to always take shots using the setting with highest resolution. Although using higher resolution results in more memory use, if you purchase a large sized memory card it will not pose a problem. Who knows, perhaps the best shot you could capture take in your entire life is in front of you, it is better if it is a good resolution.

The above tips will help you get accustomed to your new camera. Do not hesitate to take as many shots as possible. Remember, you have all the memory you need.



By: Abhishek Agarwal

About the Author:

Abhishek is a Digital Photography enthusiast and he has got some great Digital Photography Secrets up his sleeves! Download his FREE 59 Pages Ebook, “Digital Photography Inside Out!” from his website http://www.Fun-Galore.com/634/index.htm . Only limited Free Copies available.



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Basic Digital Photography: Taking Control of Exposure

March 12th, 2009
In a previous article, lighting was identified as the element which most determines the quality of an image. Working with available light and using internal flash and external light sources were discussed. In addition to the light present, the amount of light on the image sensor, or exposure, is determined by the opening/closing of the aperture and the length of time that the shutter is open. To better understand exposure, this article will discuss aperture, shutter speed, and the concept of “bracketing”.

Aperture is essentially the opening that allows light in through the lens. You will see aperture indicated in “f-stops”. The smaller f-stops represent larger apertures and therefore more light coming in through the lens. To state it more directly, the larger the aperture the brighter the light obtained. It is also important to realize that aperture also influences some of the focusing within a shot, known as depth of field. Technically, a camera can only focus on one item within a shot with items becoming less in focus the further they are from that point. The depth of field is the range or distance of items that are in focus; thus, an image with a narrow depth of field generally has a smaller area in focus. A wide depth of field is used when wanting detail throughout the shot but a narrow depth of field is desirable when a single object or person is the focus of the image. When using a larger aperture, depth of field is minimized while reducing aperture maximizes it.

Shutter speed is generally understood as the length of time the shutter is open. Slower shutter speeds allow for more light and faster shutter speeds less light. Therefore, a night shot often utilizes a slower shutter speed in addition to a larger aperture to maximize the light coming into the lens. Whenever a slow shutter speed is utilized the risk of camera shake is significantly increased and thus, tripods are often necessary to avoid blurring. Fast shutter speeds, such as 1/250, produce very sharp images and can act to freeze action. A slow shutter speed produces less defined images; images that demonstrate movement by blurring action. Just as with aperture size, the shutter speed selected is not “right” or “wrong”, it is merely which will create the type of image wanted.

It is important to understand that when adjusting shutter speed or aperture size it is often necessary to adjust the other to accommodate the resulting change in lighting. For instance, if a faster shutter speed is chosen to freeze action aperture size may need to be increased to obtain adequate lighting for the shot while realizing that there will be a narrower depth of field.

Digital cameras offer the user control over aperture and shutter speed. For the novice, a Fully Automatic Mode in which the camera decides on the shutter speed, aperture, white balance, and focus is most handy. This feature is often sufficient for producing excellent photos but there are limitations. For instance, the camera will not sense when the user is attempting to take a shot which captures faster action. Use of a shutter speed that is too slow in this instance will result in blurring. As described above, it may be advisable to adjust the shutter speed, and possibly the aperture size, for this type of shot.

Many digital cameras also possess a Programmed Mode which allows the user to select the situation that is most appropriate; for instance portrait, sports, or landscape, and the camera makes the decisions from there. As discussed above, adjustments in the shutter speed to allow you to create special effects may be desired but not congruent with what the camera assumes is wanted. Most digital cameras offer a Shutter Priority setting that allows the user to adjust the shutter speed while the camera determines the aperture and other features. In other instances, increased depth of field may be desired and achieved by selecting a smaller aperture. This is possible using the camera’s Aperture Priority setting which will allow aperture alone to be adjusted. The Manual Mode allows both the shutter speed and aperture to be manually controlled. Obviously, this mode allows for the most control of shots but requires a significantly higher level of skill.

A final word about getting the best exposure with a digital camera is about a technique called “bracketing”. Bracketing is used when it is difficult to determine the optimum exposure because the lighting varies within the scene. For instance, taking a photograph of a dog sitting in a snow covered field presents challenges based on the extreme contrast and reflection. Bracketing is simply the practice of taking several shots of the same scene with different exposures. Most digital cameras make this very easy to do as they can automatically vary the exposure, taking a shot at the metered setting and others which are under exposed and over exposed. The user then compares the images, selects the best one, and deletes the rest. During the editing process it is even possible to combine the best parts of multiple shots to get the best composite image.

Although automatic settings produce great images, even a novice can adjust shutter speed and aperture to capture action and create special effects within their photographs. Digital cameras make the process easier and less expensive through progressively manual controls and the option of deleting photographs that simply aren’t desirable.



By: Christine Peppler

About the Author:

Christine Peppler shares information on home electronics, including digital cameras, and home entertainment on her website at =>http://www.homemedias.info



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