02-27-2012, 03:11 PM
[quote name='Alexander ' timestamp='1330353526' post='16230']
You can read the white paper about the camera technology in that phone here:
- http://europe.nokia.com/PRODUCT_METADATA...epaper.pdf
I'm quite impressed with what they're doing.
On the Canon EOS 5D Mark II at least, they don't use all the pixels for video, they're spread out, so the CPU only handles the actual video resolution. In the Nokia 808 PureView, they re-sample the full 41 megapixels (not 42) down to the resolution of your video in real time. There is a dedicated CPU for this purpose which after re-sampling down to your chosen resolution, hands the video over to the main CPU. This is quite impressive IMO.
So you won't get a 41 megapixle image, only 5 or 8 depending on your settings.
In addition, you can zoom. But it's not digital zoom, it's just less resolution to re-sample the more you zoom, which gives you 3x zoom for pictures, 4x for 1080p, 6x for 720p and 12x 640x360. So the image quality do change, but it's not up scaling a lower resolution image like normal digital zoom, it's down scaling until you have a ratio of 1:1 with the actual sensor pixels.
Also, it's a large sensor, in 16:9 mode the 8.02mm focal length give the field of view as 26mm on full frame, and 28mm in 4:3 mode.
I will have to get this phone for sure <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='
' /> It will be interesting to see how it handles it self. It's using Symbian Bell/Nokia Bell, but I don't miss anything for Symbian on my N8 (I use the N9 now), so it's not a problem for me. It's a 1.1GHz CPU, so it's a lot faster than the N8, and they have the same screen resolution (640x360).
It's certainly a new step towards greater image quality for phones (and maybe compact cameras if they start using this technology). Well, for bigger sensors as well of course, I'm sure this is where we are heading.
[/quote]
Nice article Alexander,
Definitly this phone is big step futher. But I should manetion that some parts ot this document are more marketing Bla Bla....
I'll copy paste just a smallpart of this document, for example "But because only the centre of the optics are
used where there is less diffraction, you get better optical performance "
With all respect of Nokia authors of this article
Miro
You can read the white paper about the camera technology in that phone here:
- http://europe.nokia.com/PRODUCT_METADATA...epaper.pdf
I'm quite impressed with what they're doing.
On the Canon EOS 5D Mark II at least, they don't use all the pixels for video, they're spread out, so the CPU only handles the actual video resolution. In the Nokia 808 PureView, they re-sample the full 41 megapixels (not 42) down to the resolution of your video in real time. There is a dedicated CPU for this purpose which after re-sampling down to your chosen resolution, hands the video over to the main CPU. This is quite impressive IMO.
So you won't get a 41 megapixle image, only 5 or 8 depending on your settings.
In addition, you can zoom. But it's not digital zoom, it's just less resolution to re-sample the more you zoom, which gives you 3x zoom for pictures, 4x for 1080p, 6x for 720p and 12x 640x360. So the image quality do change, but it's not up scaling a lower resolution image like normal digital zoom, it's down scaling until you have a ratio of 1:1 with the actual sensor pixels.
Also, it's a large sensor, in 16:9 mode the 8.02mm focal length give the field of view as 26mm on full frame, and 28mm in 4:3 mode.
I will have to get this phone for sure <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='
' /> It will be interesting to see how it handles it self. It's using Symbian Bell/Nokia Bell, but I don't miss anything for Symbian on my N8 (I use the N9 now), so it's not a problem for me. It's a 1.1GHz CPU, so it's a lot faster than the N8, and they have the same screen resolution (640x360).It's certainly a new step towards greater image quality for phones (and maybe compact cameras if they start using this technology). Well, for bigger sensors as well of course, I'm sure this is where we are heading.
[/quote]
Nice article Alexander,
Definitly this phone is big step futher. But I should manetion that some parts ot this document are more marketing Bla Bla....
I'll copy paste just a smallpart of this document, for example "But because only the centre of the optics are
used where there is less diffraction, you get better optical performance "
With all respect of Nokia authors of this article
Miro