Anyone tried the Sigma 18-50mm four thirds mount?

[e-steve]

It seems like these four-thirds lenses with the Panasonic adapters have aperture (electronic) and autofocus...

If that's true, this lens seems to be a good option, no?

http://www.bhphotovideo.com/c/product/463442-REG/Sigma_581107_18_50mm_f_2_8_EX_DC.html

Has anyone tried this one?

 

[tflak]

I don't have this lens, but it appears you will have manual focus only:

http://panasonic.jp/support/global/cs/dsc/connect/g1.html