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.

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.
Focal length 3.7mm
Lens diameter 1.68mm
Angular resolution according to the airy disk 0.39 milliradians.

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.