Nokia N86 (8MP) is the first camera phone with variable aperture. The optics are made by a company famous for its lenses. It is a Tessar lens from Carl Zeiss. The variable aperture has the f-stop of F2.4, F3.2 or F4.8. The aperture is set automatically by the phone and it is not possible to do this manually. A larger aperture (smaller F-number) separates the object in focus from the rest of the image. The focal length is 28mm (equivalent to 35mm) which is quite wide for a mobile phone camera.
The fastest shutter speed is according to the official specifications limited to 1/1000 second. According to Nokia, this is a conservative number and N86 can have a faster speed in the final product.
Nokia N86 also have excellent video camera. It will record video clips in VGA resolution (640x480) at 30 frames per second. The front camera is of CIF type and records video up to 15 fps in 352x288 pixel resolution.
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