I really like their concept of HDR here. Instead of taking 9 images with the D800 and deleting a few of the in between, I can use this to take five images with -6eV, -3EV, 0, +3eV and +6 eV. Saves a few minutes and also goes beyond what the camera allows for bracketing. The above is just an example, as you can take up to 19 images for HDR and that means you can photograph some extreme conditions.