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Digital cameras use a sensor known as CCD in order to convert light energy into pixels. The dust that accumulates on the CCD pixels can be in black or imperfections in the picture, because it blocks light energy from hitting parts of the Convention. Let's review some solutions for eliminating dust on the CCD.

The CCD is located behind the mirror reflected in a digital SLR camera. When taking a picture the mirror moves and let the light entering the lens hitting the CCD that converts light to a number of pixels that include digital photography. Most of the time the camera is closed and the dust can not penetrate it. Some cameras body may not be completely sealed against dust results in dust penetrating camera, even with the windows installed. However, in most cases most exposure to dust is when replacing the lens. During that time, the camera is open and exposed to air and dust.

To minimize dust on the CCD make sure to minimize the time the camera is open and exposed to air. For example, when changing lenses ensure that you are in a relatively clean and has the second-hand lens. Try to avoid changing lenses in the wind or dusty environment. Never take off the lens of a camera and leave the body open and exposed – or install other lenses or put a stamp on the body to prevent penetration of dust.

Even with careful attention powder eventually find its way into the camera and the CCD. There are several ways to get rid of that dust. Depending on your camera some of them not available to you.

Active dust removal: Most new SLR cameras include some type of mechanism active dust extraction. The most common one is the vibration control of dust. This solution removes dust from the sensor for high frequency vibration for a short period of time. The CCD vibration will result in the dust of the collapse of the CCD or "Dance your way" from the CCD. Different cameras turn dust vibration at a time different. Some cameras turn on whenever the camera is on, every so often and a bit off when the camera is on and when turned off. Other cameras turn the vibration on a regular basis or allow the user to manually turn.

The cameras include an image stabilizer based in motion sensor usually also include the vibration of dust, as they include the mechanical part: a motor that can move the probe and therefore the vibration Dust is a simple software addition.

Preventing dust passive: passive solution that seeks to eliminate some of the causes of dust accumulation on the CCD. The main reason for stating that the dust from the CCD is the static charge. Some manufacturers add an anti-static layer in outer layer of the CCD (typically this is the layer of low-pass filter). By making the CCD is less likely to attract dust due to static charge.

Manual dust removal: Manual removal is simply a way to manually clean the CCD. When put into the manual mode of dust removal the camera moves the mirror and keeps it in a position where the CCD is exposed and accessible. At that point you can try to blow dust off the CCD, for example, by using an air blower. You can also use special cloth to clean the CCD, but be very careful to do so and be sure to read the manufacturer's instructions for how to clean without damaging the CCD. If you are not sure how to clean the CCD is best not to try cleaning, since they can be easily damaged.

Everyone the dust extraction methods have limitations. Dust or other adhesive material can be avoided. For the casual photographer embedded in the active or passive characteristics Dust must be sufficient and manual cleaning is not necessary.

About the Author:

This article can be published and used as long as the resource box including the backlink is included. You can find more information on digital photo printing printing and photography in general on printrates.com – a site dedicated to photo printing Ziv Haparnas is a technology expoert. Mr. Haparnas writes about practical technology and science issues.

Article Source: ArticlesBase.com – Understanding What the Anti Dust Feature is in Digital Slr Cameras

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