Herb got it right. The Sigma 12-24 is reputed to be soft. The initial reports of the DA 14 are that it is very good even at f2.8. The only reason to get the Sigma would be if you also want a lens for 35 mm. film.
Cotty now owes me his autograph, a pint of bitter, and a plate of bangers and mash. The miscreant is dodging his obligations.
Joe
