What to Look for in Buying a Dome Surveillance Camera

Of the many types of security cameras available in the market, most commercial establishments prefer to utilize dome security cameras because of their sophisticated design, extensive range of features, and durability. If you are currently searching for the ideal safety and security measures to use for your business, dome surveillance cameras may just be what you need.
Top Features of Dome Surveillance CamerasDome surveillance cameras come in various sizes and with a wide range of features. Be sure to buy the model that's fully capable of meeting all the safety and security needs of your business. To help you make the right choice, use the list of features below for determining your preferences.
Weatherproof and Vandal-ResistantDome surveillance cameras come with heavy-duty housing capable of protecting its hardware from water, dust, and any other damage. Even vandals or potential attackers wishing to tamper with the camera will find this tiny but strong device quite indestructible and a challenge to destroy.
Powerful Image Recording CapabilitiesBuilt-in infrared technology allows dome surveillance cameras to record footage even at dark and resulting images and footage are still produced at superb quality. Even better, some dome surveillance cameras are also capable of amplifying light levels to brighten areas that are located at a greater distance.
Dual VoltageIf you plan to switch use of your dome surveillance camera from one room to another, it's best to look for a model that offers dual voltage options. This way, you won't have any problems setting up your security camera, regardless of the room's voltage requirements.
Wall and Ceiling MountableAnother desirable feature of dome security cameras is how they're designed to be wall or ceiling mountable, whichever suits your needs better. As such, you have more location alternatives to choose from and thereby increasing the chances of picking out the most suitable area for you to set up your surveillance dome camera.
Image Compression and FormattingAdvanced models of dome surveillance cameras are able to automatically compress images or footages recorded, allowing you to save more on hard disk space without compromising the quality of your photos or videos. Also, most dome surveillance cameras will let you choose the appropriate format for your images and videos.
External ControlLastly, a number of dome surveillance cameras come with external controls. You'll be able to modify zoom and focus options from a distance and without making other people aware of what you're doing.

by Phil Washington
http://www.goarticles.com/cgi-bin/showa.cgi?C=1452771

2009 Digital Camera Buying Guide

Reading this article will give you the information you need to choose a digital camera based on the functions and features that it has. It's a digital camera buying guide that will tell you what you need to know. In many ways, cameras with 35mm film are the same as the modern digital camera. In both cases you will find a shutter, an aperture and a lens inside.
The major difference between these two types of cameras is the method they use to get the image. Digital cameras use an image sensor instead of film to capture it, and normally it's a CCD (charge couple device). These are silicon chips that have millions of pixels, which are photosensitive diodes). Each one of these pixels gets one small part of the entire photo. Once the shutter is opened, those pixels get and record the light's brightness. When the shutter is closed again, the recordings from every pixel are converted into a number. The digital camera then rebuilds the image using those numbers, doing a lot of calculations (millions of them) to reconstruct the photo.
When you use a film camera the photo will be stored on the film. But, digital cameras need to use another device to keep photos on them. After the image sensor captures the photo, it will be kept on a storage device inside the digital camera.
If you own a digital camera, you can view the photos you take on an LCD screen that you can find on the camera's back. You can take photos with ease, without carrying film with you. Store everything on memory cards instead!
The great thing about digital cameras is how easy it is to use and distribute to other people. Just a few examples: use email to give them to friends, upload them to a site or use them in a word document.
An even bigger difference from film cameras is the fact that you can also record movies and sound with the latest digital cameras.
A few of the biggest features that digital cameras have
When you decide to buy a digital camera, there are a number of features that you need to know about, and the most well known is the resolution.
The Resolution
The camera's resolution tells you the number of pixels that are on it. When you know how big is the megapixel number, you know how good the camera is (when the number of megapixels is big, the resolution is big as well).
Different megapixels lets you make different size prints. If your camera has 1 megapixel, you can create a 4x6 inch print. A camera that has 1.5 megapixels will allow you to create a print that is 5x7 inches in size. This continues the same way, with the big megapixels allowing you to create bigger prints.
Getting the perfect camera, is never an easy thing, especially with the way digital technology is constantly changing. Fortunately, there are plenty of helpful websites online, that can narrow down your search and help you find the camera with all the features important to you.
Article Source: http://EzineArticles.com/?expert=Chris_Campbell

wedding digital photography

One of the moments that most people would really love to preserve is the events on their wedding day. With digital wedding photography you can capture all those amazing moments for everyone to see.
Most wedding photographers have assistants so they can create a wedding album that will be memorable but if you want to take pictures of a friend's wedding, who will help you?Fortunately for wedding photographers they can use an assistant to help them get the right shots but if you're a friend taking pictures, then how do you take good shots of the day?If you want to take photographs of your friend's or relations wedding then you will have to do it on your own because you won't have an assistant like the professionals have. Ensuring photos taken with your digital camera are something special for your friend's or relation on their big day might be a little easier once you have read the tips in this article.
If you only remember one piece of information from this article, remember to make sure that the photographs have a nice background as it is one of the first things you'll notice when you look at them. If there is a pleasant background but it is hard to focus on the couple, you may find it easier to shoot them from shoulder up.
If there is bright sunlight or you are using flash, ask guests who are wearing glasses to remove them just for the shot or as an alternative they could turn their head slightly to the side. If there's a couple or a group that you wish to include in the picture, you should use the zoom function in to get the ideal image but do not shoot against the light so that dark images appear.
Natural, wedding photos always look better than staged ones but difficult to capture when you are too close so a powerful zoom lens is a great advantage. Allays be ready for the next digital wedding photograph because you can't ask people to repeat those unforgettable moments that everybody wants to see again and again.
Probably the most important thing to remember with digital cameras is to have plenty of memory in your camera plus fresh batteries and the best way to ensure this is to always carry spares. Professional digital slr cameras start at 6 mega pixels and very few compacts are now below that so your card will need to be a minimum of one gigabyte to be on the safe side.
Always remember that the higher the resolution used, the larger the size of prints that can be made so always keep a secure copy of your work so you can re-use them in the future. Once you have the images it is only a matter of printing out the ones you want and saving all of them on a CD for a permanent storage or presentation.
How successful you are at digital wedding photography will all depend on your camera and your love for this truly wonderful art.
http://www.goarticles.com/cgi-bin/showa.cgi?C=1447707