Opteka Titanium Series 72mm 0.3X HD Ultra Fisheye Lens for Canon XH A1S, G1S, XL1, XL1S, XL2, XL2E, XL H1, H1A, H1S, XH-A1, XF305, XF300 and XH-G1 Professional Video Camcorders Direct 72mm mount. Includes 72-72mm spacer ring HD, super anti-reflective scratch resistant multicoated glass optics for sharper images Produces an extraordinary degree of barrel distortion resulting in a 130 degree horizontal angle of view Exaggerates depth, pulling nearby objects closer and causing distant objects to recede into the background 5 Year warranty