The Opteka High Definition II .35x Ultra Wide Angle Fisheye Converter Lens increases the versatility of your existing lens and provides breathtaking ultra-wide angle views. Very easy to use. In addition, the built-in detachable macro lens allows for extreme high resolution close-up shooting. Nothing changes the way you see the world like High Definition II and nobody does High Definition II like Opteka. Opteka glass optics define high definition. Change the world Enjoy exceptional detail. Improve clarity and enjoy Opteka.