How to make PureView work with only 8MP
I think I have the answer to making PureView work with only 8 MP.
PureView works by taking in a large number of pixel data (41MP) and crunching them down to smaller better picture.
How do you get 41MP worth of data from a 8MP camera? Time.
Instead of taking snapping 1 (one) 41MP image, you snap 5 (five) 8MP images. Maybe the camera is so fast that it can starts taking images before you snap the picture and can gather 41MP worth of data by the time you press the button.
This works similar to leaving a camera lens being longer to get better more light in. Combined with image stabilizing it can make sure the the 5 different images line up so they can be combined correctly and so you don't get streaks. The algorithm can throw away pixels that are to different (someone blinking during the 5 images) and take only the ones that are relatively the same.
This technique can in theory be used to take a video and create an awesome single image.