Flawless HDR Photos. ON1 HDR creates flawless, natural HDR photos, that combine the highlight and shadow details from a bracket of exposures, in the blink of an eye. You can control the movement, such as clouds and running water with a live preview. Then, perfect your HDR photos with powerful tools and presets that showcase your creativity. ON1 HDR works as both a standalone and a plugin for Lightroom® Classic CC.