Viltrox JY-670 Professional Macro Ring Flash Light Lite 5500k Speedlite for Nikon Canon DSLR Cameras Twin-tube ring lite designed for close-up photography. Flash tubes can fire together or independently. It includes 6 pieces of adapter rings for you to choose. LCD screen, exactly display,clear for easy known. It fits almost camera with standard hotshoe, such as Canon, Nikon, Olympus, Pentax. (Pentax K5 can not compatible)