N9 Hardware Main Camera
The N9 main camera features a dual flash LED, and other features outlined in http://thehandheldblog.com/2011/06/27/nokia-n9-camera/
f/2.2 aperture, an 8.7 megapixel sensor (4:3/16:9), with the 16:9 mode providing more width.
- Carl Zeiss optics
- f/2.2 aperture leading for very wide shots.
- Continuous Video and still autofocus with face detection.
- High power dual LED flash
- AMBR – Automatic Motion Blur Reduction
- 1.4um pixel pitch
- Total sensor size 3552*2448
- In 4:3 mode, 3248*2448
- in 16:9 mode 3552*2000
- 3552*2448 mode is not available in stock software, as the corners of the imager are not fully illuminated by the lens.
- Field of view 65.5*46.4 degrees.
Above table from this thread on nokia conversations and wikipedias page on angle of view.
The lens forms an image diameter of 1.4um * sqrt(3248^2+2448^2)=5.7mm, which touches the corners of both 4:3 mode and 16:9 mode.
The lens has an F Ratio of F/2.2.