Anyone use the Sigma 18-50 f/2.8 with the AF100?
 

If anyone has used this four-thirds lens with the AF100 (with the Panasonic DMW-MA1 adapter), I'm curious to know your impressions and how well it has worked for you. I have the 14-140 Panasonic kit lens, but would appreciate the extra aperture of the Sigma. I wonder if/how well the AF and iris control work on this camera... and just a general idea about the images it gets on the AF100.

Any info would be appreciated. Thanks!