As recently as a year ago, you wouldn't have heard that much about using your smartphone's camera to take passable snapshots in dim lighting. But thanks to cameras with lower f-stop readings, cellphone cameras are letting more light in, improving the capabilties of the rear-facing camera to take decent low-light shots. The f2.6 f-stop on the Samsung Galaxy S III camera compares to the f2.0 on the Nokia Lumia 928. This explains why the latter takes better photos under low-light conditions than the former Android flagship model does. The smaller the f-stop number, the larger the aperture hole in the camera. The larger the aperture hole, the more light that is let through to the picture.
Nokia has grabbed onto this new found focus (no pun intended) on low-light photography like a pit bull whose jaws are locked around the leg of a helpless postman. And while we have just offered our own comparison of the Nokia Lumia 928 and the Apple iPhone 5 for your perusal, the Finnish manufacturer has just released a new television ad that shows its own comparison of the low-light capabilities of the camera on its just released Nokia Lumia 928 with the shooter on both the Apple iPhone 5 and the Samsung Galaxy S4. At the end of the commercial, you can see a quick comparison of a photo taken without flash on the Nokia Lumia 928 and both Apple and Sammy's current flagship models.
While Nokia appears to have the edge on this niche of the market for now, it won't be too long before other OEMs catch on and start releasing cameras with lower f-stops. The recently released Lenovo IdeaPhone K900, for example, just touched down in China sporting a 13MP rear-facing camera that features an f1.8 aperture size.
source: YouTube, Neowin via GSMArena