High dynamic range (HDR) image viewer for people who care about colors. It is:

• Lightning fast: starts up instantly, loads hundreds of images in seconds.
• Accurate: understands HDR and color profiles (ICC, CICP, etc.). Displays HDR on all operating systems.
• Versatile: supports many file formats and their quirks: gain maps, aux channels, animation, and more metadata than just EXIF & XMP. Advanced pixel peeping: histograms, tonemaps, error metrics, etc. in any color space.