Ring LED Light - Macro Light for Macro Photography. Attachable for lenses with 49/55mm filter thread. 2 brightness values adjustment. Lighting segment control to create artistic control of subject illumination and shadow. Select either Full Light, Half Light (either left or right sides). Uses White Led's for natural coloured illumination and white balance. Supplied with Adapter Ring (49/55mm) and Flash Adapter for attachment to a accessory shoe.