Sigma.lens.for.canon.eos.cameras

Maria asks…How well will this adapter work with my Olympus E-500 and Sigma 18-50mm f3.5-4.5 lens?Hi, I do alot of macro photography.

So far I have a 40-150mm f4-5.6 Zuiko Lens (I have a 4/3 mount camera) + a Close Up Macro lens set.

How effective will this adapter be if I kept my 18-50mm Sigma Lens for Canon EOS cameras , and add it to my Olympus E-500?

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and If I use this adapter, will it only

Canon Eos more info....