Aputure HN100 Amaran Halo LED Ring Light for Nikon (Black) Higher CRI value (CRI 95+), more Natural Color Render. CRI 95+ has Applications in areas where Color Differentiation is Crucial Step less dim with Precise Output, with Three Brightness Levels; quarter, half and full. Easy to Master Brightness Output. AF-assist Lighting Half press Shutter to Activate AF-assist Lamp to make Focus much Easier. Unlimited lighting set up, includes Full and Half Mode in both Ambiance and Flash for Creative Shootings Eight Lens Adapter Rings included; 49, 52, 55, 58, 62, 67, 72, and 77mm