Unlike ordinary macro ring lights requiring a special adapter to fit lenses of different filter attachment sizes, the Sunpak DSLR67 LED macro ring light fits most lenses with a filter attachment size up to 67mm. Just slide the ring light into your camera's hot shoe and adjust its flexible cable so the ring light aligns with the front of your lens. That's it. Turn it on, focus and shoot! Its steady LED illumination makes it easy to pre-visualize every photo before clicking the shutter.