How much you asking for it? I'm gonna try to sell mine for $50. 
But, that was my point, is that it doesn't vingette on a crop body because the crop sensor doesn't see the outer edges of the lens,
so when I went to full frame, it became pretty much useless for me,
not to mention my mirror hits it.
(don't worry, I know I butchered the spelling of vigngnette. And I don't mind.
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