Here it is, priced for sale:
http://www.bhphotovideo.com/bnh/controller/home?O=8429&A=details&Q=&sku=12132&is=GREY&addedTroughType=categoryNavigation
I remember using a perspective control lens, years ago, on a film camera. It only ran about $500, back when. But it's better to make that perspective correction at the scene. Because you'll lose some of the photo if you try it in Photoshop, or you'll add aliased info if you expand out.
And if one were to complain of the cost, there's always the comparison of this 7/11 security camera - as it were. The massive 320x240 resolution will only run you about:
http://www.bhphotovideo.com/bnh/controller/home?O=Search&A=details&Q=&sku=458702&is=REG&addedTroughType=search
I wonder if you could still get it if you only had 48 cents, instead of the full 50?
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