Sigma @2.8
http://s88.photobucket.com/albums/k176/bad...ma18mm2_8_2.jpg
pointless...

Sigma @3.5
http://s88.photobucket.com/albums/k176/bad...igma18mm3_5.jpg

Więcej zdjęć (18&50mm) na http://www.alphabetcityblog.com/2009/06/si...s-hands-on.html