The three most popular cameras on Flickr are iSight cameras, equipped on the iPhone 4, iPhone 4S and iPhone 5. Apple looks poised to hold onto this position for some time, with the iPhone 5s incorporating several advances to make iSight camera picture quality even better than before.
While the image sensor retains the same 8 megapixel resolution as its predecessor, the iPhone 5s sensor is 15 percent larger in size. With a redesigned 5-element lens, larger pixels (1.5 microns) and a wider aperture at f/2.2 the new camera is 33 percent more sensitive to light. This all means better images can be captured in low light situations.