What is megapixel?

Megapixel refers to one million pixels and is commonly used in a reference to digital cameras as an indication of resolution capability. Pixel is a small square on a computer display that is so small that it appears as a dot. The display is a fixed grid of these squares or dots that can be easily seen using magnifying glass. The more pixels or dots form the screen screen, the clearer the resolution or picture will be. A larger number of dots or pixels allows further improving the image, resulting in a higher, more true image replication.

In terms of digital cameras, the ability of image quality is measured in megapixels. For example, the 3.1 megapixel camera can take pictures with a resolution of 2048 x 1536, which is equal to 3,145,728 pixels. This means that the resulting image will be made up of 3.1 megapixels or over three million dots. Printers measure quality in DPI (dots on the thumb). A printer capable of only 300 dpi will not print a picture of 3.1 megapixels of its native high quality. It is simply not capable reproduce fine detail. Instead, the image may seem granched. If you want to print photos, make sure the printer is well suitable for the capabilities of the digital camera.

The number of megapixels needed to meet your needs depends on what the camera will be used for and what size they are required if they exist. The higher the distinction- or larger megapixels-, the greater the flexibility of the camera will have when it comes to delivery of high-resolution prints in large sizes such as 8x10.

For those who do not want to print digital photos at all, but rather look at images on a computer or TV display, buying high megapixel cameras is not necessary. Even 1.5 megapixels will be enough. This means that most cameras in autumn 2005 are 3.1 megapixel or better.

If you plan to print images in sizes up to do8x10, experts recommend F4-5 megapixels or about 2500 x 2000 resolution. For up to 12x16 prints, look for 3200 x 2400 or better, which is reflected in 6 megapixel cameras or higher. For comparison, many experts use 11 megapixel digital cameras for maximum resolution and clarity even on large printed displays. If you do not plan to print extensions, paying for more megapixels than you need, the money will be wasting.

In addition to the megapixel of a digital camera, the amount of internal memory and the type of flash card can change the big difference in comfort and long -term costs. Larger internal memory allows greater flexibility, as well as the ability to use flash cards with higher capacities, although those with lower capacities will be cheaper.