My first response upon hearing about Nokia’s forty one-megapixel 808 Pureview was that it become an absurdity, an ideal instance of the very worst of client electronics, and a complete pass over. But the extra I study, the higher I understood that this telephone is not only a few freak of nature with a ridiculously excessive range connected to it. It’s simply the marginally awkward first steps of a severe pass via Nokia to distinguish itself. If you have best skimmed the news, there are a few stuff you have to probable realize about this odd beast of a camera.
First, the forty one megapixel figure is absolutely misrepresentative, not to mention untrue. It does not take 41-megapixel photographs in any way, form, or shape. Even within the special excessive-res creative mode, it “handiest” produces 38 megapixels. Mostly it will be taking everyday-length shots, between 3 and eight megapixels. So what the hell does this forty one megapixel figure even mean?
It manner Nokia is being clever approximately the way cameras at this size sincerely work. I wrote a while lower back about how HD does not always mean high definition, and cameraphones have been an tremendous instance of this. Their tiny sensors and bad lenses supposed that whilst they’ll produce snap shots of a positive size, the excellent become sorely lacking. This was because they insisted on wringing each viable pixel out of a really small sensor. The 808′s sensor (supposedly synthetic via Toshiba) is not small. At 1/1.2″, it is four or five times the size of most cameraphone sensors, which include the only within the iPhone 4S. Bigger in reality than the sensors in most factor-and-shoots. Now, while you make your sensor larger, you can either preserve the equal resolution but have larger wells or photosites (which detect mild and make up pixels), which usually improves sensitivity. Or you could preserve the equal photosite size and just put more of them at the sensor, which improves decision. In this situation Nokia has achieved the second one element.
But they have executed it almost to an absurd quantity, and they realize that their lens, excellent as it’s far (and fairly speedy – F/2.Four is strong, even though there is lots of distortion proper now), can’t truly resolve element well enough that forty one megapixels would be important. Even on full-body cameras that many pixels is questionable.
So instead of simply bumping this one spec and waiting for it to sell itself, they built a whole photo machine across the idea. The 808 camera doesn’t take forty one-megapixel photographs; it collects forty one megapixels of facts and makes use of all that facts to create a completely high-quality photo of a far smaller length. Imagine a image around 8000×5000 pixels that is not mainly sharp; now cut back it down to some thing considerably smaller – perhaps round 3000×2500 pixels (~8MP), simply as an estimate. You do it intelligently, polishing and de-aliasing and doing noise removal.