Source: http://europe.nokia.com/find-products/devi.../specifications

Nokia N8 tested camera parameter
ISO - 100 (LOW), 400 (MID), 800 (HIGH)
Shutter Speed - 1/5 secs (Night Mode), 1/15 secs (Others Mode MIN), 1/4973 secs (MAX)
Aperture - F2.8 (FIXED)

Digital Camera class
(10MP)- Canon’s s90 Digital Camera - 1/1.7

Smartphone class
(12MP)-Nokia N8 - 1/1.83
(12MP)- Sony Ericsson Satio– 1/2.5″
(12MP)- Samsung Pixon12 – 1/2.5″
(8MP)- Nokia N86 8MP – 1/2.5″
(8MP)- Sony Ericsson Vivaz – 1/3.2″
(5MP) - Iphone 4 - 1/3.2"

The lower the number the better.

The size of a camera sensor will have a big impact on the quality of your pictures. The lens gathers light and directs it towards the sensor, and the sensor records the light to create the image.
Large sensor produces better images

All things being equal, a larger sensor will receive more light than a smaller one, and produce better images. This is especially important in low light photography.

When light levels are low, a smaller sensor will generate a higher amount of noise, which will decrease the quality of the images. This is why the best low-light setups include a camera with a large sensor (usually a

DSLR) and a lens with a large aperture.

For more understand of camera sensor
http://www.digicamhelp.com/camera-features...ts/sensor-size/

1. Release: PR1.0, V011.012, Date: 18 SEP 2010
2. Release: PR1.1, V013.016, Date: 27 JAN 2011
3. Release: PR1.2, V014.002, Date: 01 MAR 2011
4. Release: Symbian Anna, V022.014, Date: 18 AUG 2011
5. Release: Symbian Belle, V111.030.0609, Date: 07 FEB 2012

Nokia N8 LYN Threads V01 - V-01
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Nokia N8 LYN Threads V32 - http://forum.lowyat.net/topic/2081887