I came across this bundle, its a great price if the lenses are any good. Does anyone have any experience with either of these lenses?
http://www.amazon.com/Sigma-28-70mm...=sr_1_36?ie=UTF8&s=hpc&qid=1197682675&sr=8-36
http://www.amazon.com/Sigma-28-70mm...=sr_1_36?ie=UTF8&s=hpc&qid=1197682675&sr=8-36