A digital camera takes still photos or video or digital recording the images on a light sensor. Move most compact digital cameras can record video and audio, and, apart from still photographs. The sales and popularity of digital cameras increased compared to 35mm film. Digital cameras have a function to display the image, which is immediately recorded on the camera display, the function that is not in film cameras. Other features include the attachment as a lot of pictures on a small memory chip for recording video, sound, image editing capture, delete, files, etc. Digital cameras are not needed immediately, along with many devices ranging from phones and PDAs and even cars. The camera has probably affected more by digital technology for all other products. The digital cameras are not a new phenomenon. The first Kodak camera in the U.S., published some 15 years ago. The DCS-100 at this time with 1 3-megapixel camera was about $ 13,000 available. Digital cameras have emerged with more features, and at relatively low prices, even for the measurement of $ 80 in select stores. The biggest advantage of digital camera technology is the storage capacity. You can view pictures with the camera itself, in a Web page, a computer monitor or on paper after printing. The digital camera can be connected directly to the printer via the USB port for printing images. We can afford to buy a digital camera today as prices fell, with the availability of functions. It ‘important to understand the problems of image resolution when comparing models of digital cameras. The unit’s graphical representation for displaying the digital data is used by digital cameras as a mega pixel (MP). More to the mega-pixels, the higher the resolution the final image. You still need pictures from a digital camera to compare to your current needs. Some typical resolution on digital cameras can be found at: 256×256 – This is a very cheap cameras. The picture quality is not acceptable. 640×480 – Suitable for sending pictures to a website or to send images via e-mail. 1216×912 – This resolution is sufficient for printing pictures. 1600×1200 – This is a standard high-resolution, with a total of about 2 million pixels. 2240×1680 – this is at most 4-megapixel cameras. 4064×2704 – This is the high-end digital camera with 11 1 megapixels. Some high-end consumer cameras can Recordings of over 12 million pixels. Most professional cameras have 16 million pixels. Large format cameras 20 million pixels. For the sake of comparison should be noted that the quality of 35mm film about 20 million pixels. Some types of digital cameras are point-and-shoot, semi-professional, Bridge and reflex camera. You must know the complete package will be offered when you compare the prices of digital cameras. It is possible for the availability of software for image search, custody, an add-on memory cards and USB cable to work on your computer when you compare the prices and the properties will be offered. More general functions, we can look at the availability of an LCD screen, a timer, a built-in flash, a date and time stamp, optical zoom and optical zoom lenses of good quality.