Zuiko version of a Sigma 17-70mm DC Macro???

[Leo4]

17-70mm F2.8-4.5 DC Macro HSM - Standard Zoom Lenses - SigmaPhoto.com


I have been using this lens on a D60 and have completly fallen in love with it. My question is, does Olympus Zuiko make their own version of it? They don't make this lens for the E600 so I am hoping there is a Zuiko version of it.


Next thing is if I bought Leica glass in the four thirds standard will their AF work on my E600? I would love to own their glass and still be able to use it on my Olympus cameras.


Thanks