The image quality seems a bit low (low contrast/greyish, lots of grain), but the concept is very cool. I also see lots of artifacts (horizontal lines) in severa

The image quality seems a bit low (low contrast/greyish, lots of grain), but the concept is very cool. I also see lots of artifacts (horizontal lines) in several of the demo images: http://www.lytro.com/picture_gallery http://www.lytro.com/picture_gallery