Fusion is a program that allows you to make the best possible image from the same images shot at different exposures and shutter speeds. In addition, it allows you to combine two images taken at the same time. The RAM will be occupied by an extended dynamic range of brightness (HDR) when you combine multiple pictures taken at the same time with separate exposures. After a compression step has been taken, you can preserve all of the most important parts of the image. You will be able to overlapping overlapping automatically, using either operator for HDR processing or pixels addition when you open the program.