Outdoor in the daytime, the difference in brightness between direct sunlight and tree shade can easily exceed a factor of 10,000, creating a difference in photographic subject brightness called dynamic range. Ordinary image sensors designed for mobile applications are unable to capture a dynamic range in excess of 1000 in a single image.
Sony's HDR (High Dynamic Range) Function addresses the need to take pictures with clarity in both dark and bright areas. It is effective in situations including:
Conventional HDR functions can only be used when taking still pictures, with a single press of the shutter taking multiple images using higher, standard, and lower exposure. These images are synthesized by an application to generate a single image. However, the image requires time to process, and its quality remains unknown until it is synthesized and saved. In addition, a moving subject may not be captured accurately.