(UPDATED) Sigma beats Olympus and makes fastest zoom for DSLR system.

The Four Thirds system offers two unique zooms with constant f/2.0 aperture. The [shoplink 25320 ebay]14-35mm[/shoplink] and the [shoplink 25119 ebay]35-100mm[/shoplink] lens. Neither Canon nor Nikon systems can offer a fast zoom like that. UPDATE: But today Sigma announced the new Sigma 18-35mm f/1.8 constant aperture lens! It’s an APS-C lens and the price and mount is yet unkown. But I don’t think it will come for FT mount…

The official page can be seen and seen here at Sigma Photo website.

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Links to the two superb Zuiko f/2.0 zooms:
14-35mm f/2.0 on [shoplink 25320 ebay]eBay (Click here)[/shoplink] and via Slidoo eBay.
35-100mm f/2.0 on [shoplink 25119 ebay]eBay (Click here)[/shoplink] and via Slidoo eBay.