http://proof.nationalgeographic.com/201 ... iphone-5s/
With intense use (I’ve made about 4,000 pictures in the last four days) I’ve discovered that the iPhone 5S is a very capable camera. The color and exposures are amazingly good, the HDR exposure feature does a stunningly good job in touch situations, the panorama feature is nothing short of amazing—seeing a panorama sweeping across the screen in real time is just intoxicating. Best of all it shoots square pictures natively, a real plus for me since I wanted to shoot for Instagram posting.
What surprised me most was that the pictures did not look like compromises. They didn’t look like I was having to settle for second best because it was a mobile phone. They just looked good. Nothing visually profound is being produced here, I would have to say. But it feels good, and I even noticed some of the folks on our tour putting big digital cameras aside once in a while and pulling out their cell phones when they just wanted to make a nice picture.
No, it's not replacing the high end DSLR, but the lines continue to blur.