Fusion is a program that allows you to make the best possible image from the same images shot at different exposures and shutter speeds. But it also allows you to combine pictures taken with the same exposure. If you combine multiple images taken at the same time with different exposures, an image with an extended dynamic range of brightness (HDR) will be created in the computer's RAM. The next compression will ensure that the maximum number of significant details of the image will be saved. The program is able to perform overlapping automatically, using the operator of HDR processing and operator of pixel addition.