The Opteka .35X Ultra Wide Angle Fisheye Lens with detachable macro gives you a dramatic 180 degree view with a greatly exaggerated perspective when used with a digital SLR camera and it’s existing lens. For example, the Opteka .35x will convert a 18-55mm lens into a 6.3-19.2mm fisheye. A powerful circular image is produced, floating within the frame. …