taken from dpreview site on EX1 pg#07,
Beyond this, the camera is automatically correcting distortion, chromatic aberration and purple fringing, meaning there are very few obvious problems making it into the final images. As shown in the studio comparison shot, the camera we based our review on occasionally shows a loss of image sharpness down the left-hand side. The effect is only really visible with this essentially flat target that is shot at a relatively close focus distance. The performance shown in this review is fractionally better than that of a second unit Samsung sent us to check the results against (which instead showed a soft right-hand side).
do u mean this? dont look like a defective camera to me base on the description.