Sigma 24-70, f2.8 opinions wanted

sharpness wise it's up there with any zoom (i think it's fractionally better than my 50-135 but there's not much in it) colour wise the sigma coatings aren't quite as good as pentax's the 24-70 is slighter duller/cooler then the richer/warm contrast levels of say the 50-135. but the are better then the preceding generation (ie the coatings on the 24-70 are a least a generation ahead of the 10-20 4-5.6)

bokeh wise is more of a subjective measure but at the least i'd call it busy (bokeh " to me" isn't one of this lens strengths.)

Rohan (hope that's some help)
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