Opteka .35x HD2 Super Wide Angle Panoramic Macro Fisheye Lens for Canon PowerShot S5 IS, S3 IS, S2 IS Opteka .35x HD2 Super Wide Angle Macro Fisheye Lens. Direct 52mm mount; Adapters for 58mm &amp; 67mm included. High Definition II - 2 times the resolution of standard high definition lenses Professional High Speed Auto Focus, Full Panoramic Capability, High Quality Crystal Optics, &amp; AF Infrared Compatible Lens front Thread 67mm, 8 Element Lens, 180Deg Degree Capability Warranty