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| Nokia 808 PureView, camera, 10 hidden, secrets, noknok, news, tech, nokia, wallpaper, poster, cover, news |
Well noknok, have posted a nice post about the Nokia 808 PureView camera 10 hidden secrets. Nokia 808 PureView, is a 41Mp Camera , running on Nokia Belle (symbian) . Its 1st set to come out in
Russia and India in May 2012.
PureView Pro imaging technology ditches the old scaling/interpolation
model of digital and optical zoom used in pretty much all smartphones.
Usually the lens elements move back and forth to magnify the field.
Instead Nokia has limited the digital zoom to just 2x to avoid
compromising images, and ditched upscaling altogether, and when you zoom
you’re only selecting the relevant part of the sensor so that the image
in the zoom is always the image you want.
More processing power Why didn’t the Nokia 808
PureView arrive sooner? Well, only now has the processing power been
developed. The most powerful chipsets have a limit of 20Mpix of image
processing capability. The Nokia 808 PureView does double that. For
video the amount of pixels handled is over 1 billion per second,
amounting to 16x oversampling. That’s 16x greater than most other
smartphones.
More detail even in low light conditionsPixel
oversampling combines many pixels to form one super pixel. When this
happens you filter away all the visual noise. In low light conditions
the speckled look you often get in smartphone pictures is greatly
reduced. In good light it is non-existent.
Faster shutter speeds than your old smartphone camera Even
at maximum zoom 5.4 times more light reaches the Nokia PureView sensor
than an equivalent optical-zoom digital camera. Because of this you get
faster shutter speeds. A conventional camera set to ISO 100 will have a
shutter speed of 1/30th of a second. The Nokia 808 PureView uses up just
1/180th of a second in the same conditions.
Better flashThe faster shutter speed reduces any
visual noise likely to appear in pictures when using zoom. According to
Nokia, it also means that the Nokia 808PureView’s flash range is
maintained at all levels of zoom, rather than being reduced as the zoom
range increases.
Touch Autofocus
In the Creative Shooting mode a
long touch on the viewfinder brings up a pop-up window giving you the
option to select from Automatic or Macro, where close-up focus improves
further.
PureView technology works on video tooThe same
oversampling techniques for photos is also applied to video resulting in
footage with no added nastiness, just as much detail as possible.
Silent zoomA lot of dedicated cameras and
camcorders make an annoying sound when zooming. Not the Nokia 808
PureView. Nokia has ensured that the zoom is completely silent when
shooting video.
New Slide ZoomThe Nokia 808 PureView introduces a
feature called Slide Zoom. A lot of new smartphones use what is called
Pinch to Zoom. It works well, but is not so great when trying to take a
photo. With Slide Zoom, simply slide your finger up and down to
interact. A frame appears that moves in sync with your finger allowing
you to preview the frame without committing.
Improved video autofocusThis was an area that
needed to be improved, and Nokia has done it. Continuous autofocus in
all shooting modes ensures that whatever you’re shooting, the footage
will be steady with little to no sign of judder.
