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5MP downsample, resolution falls well short of what a 38MP camera should (theoretically) be capable of, runs windows phone 8 (fewer apps), phone has awkward shape not shown in commercials, low screen resolution, and as the following review puts it: http://www.everyjoe.com/2013/07/13/technology/nokia-lumia-10... "You might think that despite all of these negatives, at least the Lumia 1020 blows all other phones out of the water when it comes to the camera. You’d be wrong. There’s a noticeable lag when between taking a picture, saving it, and being able to take another picture. The Lumia 1020 comes with three different camera apps, each with their own function, so good luck figuring out what does what. Annoyingly, every photo you take has an on-screen caption that reminds you which app took the photo, but at least it doesn't show up in the picture itself" |
The 1020 uses silicon and software to compensate for the physical limitations of a short focal length and small aperture. Instead, a huge sensor captures many more pixels than you need, and then software algorithms distil this down to a five-megapixel image of great richness and detail.
The sensor is 41 megapixels, creating as a first step a 34 megapixel image; the other pixels being put to good use interpolating the image. For a technical explanation, see [1]. The phone actually keeps a master copy of the image at full resolution, and presents the five-megapixel image to you right away for editing and sharing.
[1] http://www.theregister.co.uk/2013/07/15/nokia_lumia_1020_tec...