This site was shared with me in an email. Is this for real?! http://kwc.org/blog/archives/2007/2007- ... 0_f28.html
Yes, at least one is real. But like Tokina, and some Sigma lenses, it may be a while before it's 'available'. Even then, it should be in the low five figures.
I couldn't imagine what you would need something like that for. Outside of nature photography for national geographic that is.