This is a pattern of colors that appear to be a checkerboard or rainbow. It's caused when one or more half-tone screens are not correctly aligned in a color photo.

This is a standard photography document that provides you with legal permission to use another person's image for commercial purposes or to submit pictures to a photo contest.

A technical measure of the power used in any electronic device, such as an LCD, or how much power a NiMH or Nicad rechargeable battery can store.

This is a separate piece of equipment through which you transfer photo data from the memory card in your camera to your computer. It's a superior method to a direct connection between your camera and computer. That can have a negative effect on your camera's circuits.

This is another feature of most DSLR cameras that allows to format new memory cards or those that have been erased. Read your camera's manual because formatting a memory card is more absolute, as that function will erase everything, even your protected pictures. Formatting also reconstructs the...

This is a feature of most DSLR cameras that allows you to erase pictures and other files from your memory cards, so you can use them again. Read your camera's manual because the deletion process is different for many cameras. Typically, you perform this task in the main menu and have access to the...

This is a small, flat electronic piece that is typically the size of a coin or stick of gum. It is inserted into your camera and your photos are stored on the card, digitally.

One megapixel is equal to one million pixels. Your digital camera's image sensor captures each picture you take as a series of extremely tiny points, or pixels. The resolution of each picture is measured in megapixels. It's also how cameras are rated, so look at their resolution specifications...