Anyway the DPReviewpage puts up an image as a sample which is actually quite interesting. Its called "quiet moment" and is (according to the EXIF) taken at 800ISO. I've taken that for examination and (to avoid any copyright annoyance) have added to it below to show where I'm interested in examining.
Firstly, lets get to some basics, Nokia is claiming that the camera is 41Megapixels, which would of course be wild. However its worth reminding that Megapixels and resolution don't just go hand in hand. Its a square relationship.
So this camera produces 41Megapixels, which is 7728 x 5368 pixels. Now the claim is that it
- produces very clean output when sampled down (using pixel binning)
- and allows for great lossless digital zoom
Pixel binning refers to the combination of the information of adjacent detectors in a CCD camera sensor to create one single pixel in the recorded image. For instance, a 2 × 2 binning gathers the electrons from a square of four detectors to record them in just one of the image pixels. Thus, the intensity per pixel increases in a factor of (about) four.
Which means that when you use the 808's digital zoom you will also not get the same look as you will with an optical zoom.
Here is a 100% crop from that image ...