This is a great tool for any macro photographer. The best part is that it runs on its own independent batteries so that it isn't taking power from your camera and there isn't a huge adapter that will sit on top of your camera. This ring light comes with 60 led bulbs. It puts out light that is 5600k so it as close to natural light as possible as well! It was tested on camera lenses for Canon, Nikon, Olympus, Pentax, Panasonic and many more. Depending on your lens you the adapter rings that are 49, 52, 58, 62 and 67 will make mounting to your camera easy.