The following chart gives a rough approximation of the number of photographs that can be stored on various cards for cameras with several sensor sizes. This chart is only approximate, and the actual numbers may vary depending on the cameras manufacturer. Card size is measured in megabytes (MB) or gigabytes (GB). One gigabyte is equal to on thousand megabytes.
We test SD cards and CF cards in cameras to evaluate performance. Fast cards allow your camera to take more pictures in less time as well as transfer images to your computer faster. Buying a fast card does not guarantee high speed, your camera may be a limiting factor. We test a variety of memory cards in each camera to find the best cards. We also test several card readers with different memory cards to find which readers work best for each memory card.