BuyDig offers the Rokinon 8mm f/3.5 Aspherical Fisheye Lens for several brands, as listed below. Plus, coupon code "PhotoPro70" takes $74 off, dropping prices as low as $221. With free shipping, each is at the lowest total price we could find by at least $45. Each features hybrid aspherical lenses, a built-in petal-type lens hood, and more. The lenses, with prices after the above coupon:

• Rokinon 8mm f/3.5 Aspherical Fisheye Lens for Canon (pictured) for $221
• Rokinon 8mm f/3.5 Aspherical Fisheye Lens for Nikon for $221
• Rokinon 8mm f/3.5 Aspherical Fisheye Lens for Sony Alpha for $225