LED 48a Ring Light from Fotodiox Pro is the perfect macro and portrait lighting solution for your DSLR camera. It operates smoothly, giving you steady, bright, and uniform light to achieve your desired photographic effect. The interior area is cut back and angled to allow more light to reach the center of the image area instead of casting a shadow close up like other ring lights. Adapts to most lenses by using P-style adapter rings, comes with 8 filter thread adapter rings (49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm and 77mm). The included macro extension tube from Fotodiox includes a camera mount coupling adapter, lens mount coupling adapter, extension tube 1, tube 2, and tube 3 consists of all metal construction; use any combination for various macro effects. The Fotodiox Pro LED 48a LED Ring Light Macro Extension Kit is a wonderful tool for your macro and portrait photo/video needs.