I have checked the lens and didn't see any fingerprints or smudges on it. I cleaned it anyways as you suggested. I reset the camera to factory setting and over the weekend I tested it. I took some family pictures outside, on auto settings and guess what ... out of four people on the picture only once looked sharp. The rest of the faces were blurred. I went extra mile and had the camera on a tripod to make sure it wasn't my hands shaking. That didn't help either. I had it on a timer and it seems like it detected all of the faces with green boxes but it focused on the middle only. Any suggestions?