Beach Camera via eBay offers the Tamron SP 150-600mm f/5-6.3 Di VC USD Zoom Lens for Nikon, model no. AFA011N700, Canon, model no. AFA011C700, or Sony, model no. AFA011S700, for $849. This $70 mail-in rebate cuts it to $779. With free shipping, that's tied with our mention from three weeks ago as the lowest total price we've seen.