Adorama offers the Pro-Optic 8mm f/3.5 Fisheye Lens for Canon (pictured), model no. 835EOS, Nikon, model no. 835NK, or Sony / Minolta, model no. 835SY, for $229 with free shipping. That's at least $20 off and tied with yesterday's mention of a similar lens. It features a built-in lens hood, locking lens cap, optical construction consisting of 10 elements in seven groups, and more.