Orestes Iray HDRI Skydomes - Darkest Night is a set of five photographed (for ultimate realism) High dynamic range panoramic skies of night time stars for lighting your Iray renders. Each HDR is 16K (16382 x 8192) and built with a wide range of brightness - up to 16 EV. The HDRs load with a click and also set the correct tone mapping as used in the promos.