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For the average person, digital cameras are the tool of choice to snap pictures of family and friends, to record special events, and to capture images of inspiring landscapes seen on vacations. However, for some, a love of nature, simple curiosity, or an interest in photography as a hobby guides them toward the world of close-up, or macro, photography. Close-up photography is simply a matter of taking pictures of small objects by getting very close and obtaining a magnified view. For anyone serious about macro photography an SLR camera is needed but for those interested in dabbling with their basic digital camera, a little experimentation can produce interesting close-up photographs.

Special “macro” lenses are recommended for the enthusiast but most digital cameras can accept small screw on “close-up” lenses which provide additional magnification. The digital cameras most consumers purchase are auto focus and merely require the push of a button to enter close or “macro” mode but the owner’s manual should be reviewed to discover the minimum focusing distance of the camera. When shooting at a distance of only inches there are a number of precautions to take to assure a high quality image.

1.) Focus: When photographing at close range/high magnification, images can be blurred by the slightest movements.

• If the digital camera has a feature for mirror lock-up, it should be activated as the mere movement of the mirror can blur the image taken.

• Use a tripod

• Because slight breezes can cause movement, it is easiest to shoot subjects indoors when possible to gain control over the environment. In addition, shooting inanimate objects can also be a good starting point for a novice as the subject of the picture will not be moving.

• Because of the close range, blurriness in all but a very small area of the picture frequently occurs. To get more area in focus, reduce the aperture and increase lighting. In some instances, increasing distance from the subject may be necessary.

• Be sure the subject is parallel to the lens as items which are perpendicular have portions which are further away and therefore tend to blur.

2.) Getting the view you want: What is seen through the viewfinder of the digital camera is different than what the lens sees. This is particularly evident when photographing at close range.

• Use the LCD instead of the viewfinder to see what is being photographed.

• Or, use the correction marks (lines) that can be seen through the viewfinder which approximate the border of the image being taken to visualize what the lens is truly seeing. Then adjust the shot as necessary.

3.) Lighting: True macro photography commonly makes use of specialized flash units but care should be taken when using the flash unit with a digital camera to avoid over exposure and to obtain a natural looking background. Beginners can try a couple of things to obtain the best outcome

• Diffuse the light by using very thin tissue in front of the flash

• Place plain poster board (biege or gray is often used) behind the subject if the background is blackened. This will lighten the background and if placed far enough away, blur to look more natural.

• Use natural diffuse light when possible. As in most photography, avoid direct, overhead sunlight.

Although basic digital cameras have limitations related to macro photography, beginners can certainly obtain images with a level of detail and beauty seldom seen with the naked eye when giving necessary attention to the special needs of close up photography.

Christine Peppler
http://www.articlesbase.com/digital-photography-articles/getting-up-close-with-digital-cameras-a-brief-guide-for-the-novice-87381.html

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There has been a considerable rise in the use of hidden spy cameras and surveillance systems in workplaces over the recent years. Spy cameras today are more affordable, less sophisticated and convenient to use.

Security cameras or hidden cameras are very essential for your workplaces and houses because it provides protection for your loved ones and precious things. It has become much more easier for bosses to track down their employees and keep a tab on them all the time they are at work. It is very important for them to keep tabs on you, in order to be sure that you are not causing any harm to the firm.

This new advanced technology is making it easier for the management in offices to trail your every move and hence more and more offices are getting surveillance systems installed.

According to a recent survey, more than 60% of the employers used electronic surveillance to keep an eye on their employees and more than 90% of employers admitted to have carried out electronic monitoring of some sort. Tabs are kept on every employee all round the clock and his every move is keenly monitored. Right from the moment the employee enters the office, till the time he leaves the place, he is under complete scrutiny.

This does cause a bit of anxiety amongst the employees, who are not all that comfortable about an eye kept on their every move or action. They are curious to know, as to what all things their employers are keeping a tab on?

Majority of the employers keep a tab on their employees net browsing and what all websites they visit. They monitor the emails exchanges and also check their computer files. There are some employers who even track the amount of time spent on a computer, the data entered based on keystrokes, etc. Keeping a tab on employees through a surveillance camera is getting very popular these days as well. This helps employers know what you are up to every second you spend in the office.

Andrew Stratton
http://www.articlesbase.com/electronics-articles/spy-cameras-in-workplaces-you-are-next-140433.html

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The thriving inventions of the surveillance security industry have reached almost every residence, business, and governmental department. The thought of being able to monitor any desired location for several years, nonstop, regardless of the weather conditions or temperature might be basic but it most assuredly produces exceptional results. Not to mention, these cameras are getting increasingly cheap, while their features are increasing in quantity and efficiency. Their recorded footage has been used several times in court hearings as evidence for incidents of every kind.

In fact, the national crime rate has gone down significantly due to their popularity and wide use amongst all facilities and properties.
This next story will present a violent incident caught on tape.

Pinecrest Florida, where video cameras are on watch 24/7 helping to protect this family owned jewelry store. The owner Eddie DePaula has 4 cameras recording as he greets his first customer of the day; at least he thinks it is a customer. The man stands close to the glass cases and gets as close as possible to the store owner. He then pulls out a big gun in his right hand and reaches out with his left arm to grab the clerk by his shirt collar. The scheme does not go as planned and the clerk fights back since he did not notice the gun at first. Without a wait, the culprit leaped over the jewelry counter and the clerk jumped on top of him, knocking over a nearby jewelry case. They continue to wrestle. In a couple of seconds the clerk is in a fight for his life.

The clerk’s nephew is alerted by seeing the fight in the recording security cameras placed all over the store. He races from the back room to his uncle and the clerk finally gets control of the gun. The situation gets less chaotic as the clerks nephew struggles with the culprit and the clerk points the gun at him. Even though the clerk had the gun pointed at him this violent thug continues to resist them in an attempt to flee the store.

The clerk finally reaches the panic button and alerts police but the robber just keeps fighting like a man with nothing to loose. He continues to get louder and louder while ignoring the clerks commands to sit down and calm down even though he still had the gun pointed at him. One can easily tell that he was extremely nervous and continuously yelling and screaming. The clerk decides to send him a stronger message; he shoots a warning shot in the ground near his feet, again with no effect on the man’s temper.

Unfortunately none of the passing pedestrians outside realize the dangerous situation happening just a few steps away from them; their intervention could have been really helpful in this situation. The suspect continues to fight them until finally he runs out of power. After about ten minutes, the police make their entrance, they come in and handcuff the suspect. The suspect is later charged with occupied armed burglary, based on the undeniable evidence provided by the security camera system, and awaits trial. And Eddie DePaula resumes selling jewelry under the watchful eyes of his security surveillance system.

Yahya Allababidi
http://www.articlesbase.com/electronics-articles/security-cameras-for-jewelry-stores-418292.html

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