Overall, the photos produced by the ZR1 are very good to excellent depending on if you care about how pictures look when viewed or printed at the full 4,000x3,000-pixel resolution. There's visible noise at all ISOs, but it isn't until ISO 400 that it and noise suppression combine to soften detail. At ISO 800, photos take on a painterly appearance, but fine detail is still fairly good. Though there's still some detail at ISO 1,600, photos are for the most part unusable because they are covered in faint yellow splotches along with a good amount of noise.